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Let, the zeroes of 2x²-3x+k be A and B. B= 1/A 2x²-3x+k = 0 a=2 , b=-3 , c=k So, Product of zeroes,A×1/A=c/a => 1 = k/2 => k = 2 Thus, the value of k is 2.

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If two zeroes of the polynomial x^4+x^3-15x^2-29x-6 and 2+_√5 find other zeroes

Posted by Divyanshi Rathore ❣ 5 years, 4 months ago

CBSE > Class 10 > Mathematics

2 answers

Aastha Barbate 5 years, 4 months ago

Two zeroes of given equation are x=2+√5 & x=2-√5=0 x-2-√5=0 & x-2+√5=0 Both are the factors of the given poly. =[(x-2)-(√5)]×[(x-2)+(√5)] = (x-2)^2 - (√5)^2 [ Since (a+b)(a-b)=a^2-b^2] = x^2 - 4x + 4 - 5 = x^2 - 4x - 1 = 0 ...(1) Dividing the given poly. By eq. (1), we get, x^4 + x^3 - 15x^2 - 29x -6 ---------------------------------- x^2 -4x - 1 =x^2 +5x + 6=0 Above equation is another factor of given equation By solving it, =x^2 + 3x + 2x + 6 = 0 =x(x + 3) + 2(x +3) = 0 =(x+3) (x+2) = 0 x+3=0 & x+2=0 x=-3 & x= -2 x = -3,-2 are another's zeroes of the given poly.

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Aastha Barbate 5 years, 4 months ago

Given equation.x^4 + x^3 - 15x^2 - 29x - 6

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Form a quadratic polynomial p(y) with sum and product of zeroes are 2 and -3/ 5

Posted by Divyanshi Rathore ❣ 5 years, 4 months ago

CBSE > Class 10 > Mathematics

2 answers

Gargi Nawghade 5 years, 4 months ago

Quadratic polynomial = 5x² - 10x - 3

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Aditya Vavhal 5 years, 4 months ago

There are two method a+b =2=c/a ab= (-3)/5= (-b)/a Where a= 1, b= 2, c= (-3/5) Other use this formala to find equation K[x²+ (sum of zeroes )x + (product of zeroes

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Find the zeroes of the polynomial 100x^2-81

Posted by Divyanshi Rathore ❣ 5 years, 4 months ago

CBSE > Class 10 > Mathematics

2 answers

Gargi Nawghade 5 years, 4 months ago

100x²-81 = 0 => 100x² = 81 => x² = 81/100 => x = +/- _/81/100 => x= +/- 9/10 So, the zeroes are 9/10 , -9/10

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Aditya Vavhal 5 years, 4 months ago

It can be solve by factorzation method

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All parental acts are for the betterment of the children. 'However,one has to make efforts though trials and errors shedding off one's hesitations and fears to succeed in any enterprises.Justify this statement by taking points from the lesson 'His First Flight '

Posted by Bhalchandra Raut 5 years, 4 months ago

CBSE > Class 10 > English Language and Literature

0 answers

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The quadratic polynomial p(x) with-81 and 9 as product are one of the zeroes repeatingly

Posted by Divyanshi Rathore ❣ 5 years, 4 months ago

CBSE > Class 10 > Mathematics

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If alpha and beta are the zeroes of x^2+7x+12 then find the value of 1/alpha+1/beta +2 alpha beta

Posted by Divyanshi Rathore ❣ 5 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Khushi Ramchandani 5 years, 4 months ago

- 295/12

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Which lens is called converging lens

Posted by Ridhima Sharma 5 years, 4 months ago

CBSE > Class 10 > Science

5 answers

Rajnish Kalita 5 years, 4 months ago

Convex lens is called converging lens because it converges the ray of light when it refracted from the lens (Convex basically).

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Shanu Saurav 5 years, 4 months ago

Convex lens??

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Gargi Nawghade 5 years, 4 months ago

Convex lens

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Librarian Kvgopalpurms 5 years, 4 months ago

Convex lens

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Divyanshi Rathore ❣ 5 years, 4 months ago

Convex lens

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If alpha and beta are the zeroes of x^2+7x+12 then find the value of 1/alpha+1beta+2alpha beta

Posted by Divyanshi Rathore ❣ 5 years, 4 months ago

CBSE > Class 10 > Mathematics

0 answers

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Explain transportation of food in plants through phloem.

Posted by Sunidhi Singh 5 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Aaditri Kumari 5 years, 4 months ago

The phloem tissue in plants transports food materials from the leaves to different parts of the plant. The transportation of food in phloem is achieved by utilizing energy from ATP. As a result, the osmotic pressure in the tissue increases forcing the water to move through it.

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What is phloem loading and phloem unloading?

Posted by Sunidhi Singh 5 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 2 months ago

Translocation of organic solutes such as sucrose (i.e., photosynthetic) takes place through sieve tube elements of phloem from supply end (or source) to consumption end (or sink). But, before this translocation of sugars could proceed, the soluble sugars must be transferred from mesophyll cells to sieve tube elements of the respective leaves.

This transfer of sugars (photosynthetic) from mesophyll cells to sieve tube elements in the leaf is called as phloem loading. On the other hand, the transfer of sugars (photosynthetic) from sieve tube elements to the receiver cells of consumption end (i.e., sink organs) is called as phloem unloading. Both are energy requiring processes.

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What is micturition?

Posted by Sunidhi Singh 5 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 5 years, 4 months ago

Micturition is the release of urine from urinary bladder through urethra. It is also termed as ‘Urination’. This occurs involuntarily in children upto 4-5 years; thereafter regulated voluntarily.

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Sunny Yaduvanshi 5 years, 4 months ago

Thuuuuuu.......

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At which place nephrons are located in kidney?

Posted by Sunidhi Singh 5 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Aaditri Kumari 5 years, 4 months ago

Cortex

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What is the colour of lymph?

Posted by Sunidhi Singh 5 years, 4 months ago

CBSE > Class 10 > Science

3 answers

Charvi Sangwan 5 years, 4 months ago

No it is definitely of yellowish colour. 100 ?%

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Sunidhi Singh 5 years, 4 months ago

It is colourless?

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Charvi Sangwan 5 years, 4 months ago

yellowish colour

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If a person is suffering from myopia and Hypermetropia which type of lens is used to correct it???

Posted by Charvi Sangwan 5 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Gargi Nawghade 5 years, 4 months ago

Myopia - correction lens is concave and hypermetropia - correction lens is convex.

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Bishwajeet Kumar 5 years, 4 months ago

In myopia cancave lens used for correction In Hypermetropia canvex lens used for correction In case of both problem bi-focal lens reguired

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What is double circulation???

Posted by Charvi Sangwan 5 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Gargi Nawghade 5 years, 4 months ago

In double circulation process, blood passes through the heart twice a time.

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Ashna S 5 years, 4 months ago

When the blood passes through the heart twice, its6 called double circulation

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What happen when a metal react with another metal in solution form

Posted by Muzammil Kapoor 5 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Vaibhav Sharma 5 years, 4 months ago

It will form alloys

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Write the reaction of metal with acid and give examples

Posted by Muzammil Kapoor 5 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Pooja Gulia 5 years, 4 months ago

Zn +hcl = zncl2 + h2

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Pooja Gulia 5 years, 4 months ago

Metal + acid = salt +h2

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Democracy information

Posted by Rajeshwari Gangurde 5 years, 4 months ago

CBSE > Class 10 > Social Science

1 answers

Arpita .9 5 years, 4 months ago

A form of government in which the representative or rular is choosen or elected by the people of that place

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Nurons

Posted by Shivanshu Verma 5 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 2 months ago

The brain, spinal cord and nerves are all composed of the nervous tissue. The cells of this tissue are called nerve cells or neurons.

The neuron consists of 3 parts:

The Cyton or Cell body - It contains a central nucleus and cytoplasm with deeply stained particles called Nissl’s granules.
Dendrites - The dendrons are short processes arising from the cyton and branches into dendrites.
Axon - It is a single, long cylindrical process which forms fine branches terminally. It has a swollen structure at its end called synaptic knob or bouton. It is also termed as the nerve fibre.

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How we can identify from the question which ray diagram is?

Posted by Ragendu Br 5 years, 4 months ago

CBSE > Class 10 > Science

0 answers

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Why do u think the poem is titled dust of snow

Posted by Aditya Patil 5 years, 4 months ago

CBSE > Class 10 > English Language and Literature

2 answers

Waxy Panda 5 years, 4 months ago

The soft and cold touch of snow changes the poet's mood from sad to happy. ... In this way a simple moment proves to be very significant and saves rest of the day of poet from being wasted and held in regret.

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Adarsh Kumar Sharma 5 years, 4 months ago

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Sin theta + cos theta

Posted by Account Deleted 5 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Devansh Pandey 5 years, 4 months ago

P/H + B/H

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Find the zeroes of the polynomials x2-3 an verify the relationship between the zeroes and the co-efficients?

Posted by Purva ☺ 5 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Palak Gupta 5 years, 4 months ago

X²-√3² using identity (a+b) (a-b) =a²-b² a=x , b=√3 Putting value in identity (X+√3) (x-√3) =x²-√3² X+√3=0 X=-√3 X-√3=0 X=√3 Zeroes are -√3, √3 Hope you like this

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Absorption of light energy by

Posted by Sowjanya Sundar 5 years, 4 months ago

CBSE > Class 10 > Science

3 answers

Sowjanya Sundar 5 years, 4 months ago

Differentiate unisexual and bisexual with example

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Aryan Salve 5 years, 4 months ago

Absorption of light energy by chlorophyll.

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Sowjanya Sundar 5 years, 4 months ago

Chlorophyll

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note making on tourism

Posted by Jesse Laishram 5 years, 4 months ago

CBSE > Class 10 > English Language and Literature

0 answers

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Best attitude words : I will win. Not immediately but definitely.

Posted by Lifes Crush 5 years, 4 months ago

CBSE > Class 10 > Other Subjects

2 answers

Arpita .9 5 years, 4 months ago

Thanks

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▄︻̷Řãj 05┻̿═━一 5 years, 4 months ago

Yes

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Write an experiment to trace the path of prism

Posted by Pragati Karn 5 years, 4 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 4 months ago

Procedure

Fix a white sheet on a drawing board using drawing pins.
Place the triangular prism resting on its triangular base. Using a pencil, draw the outline of the prism.
Draw NEN normal to the face of the prism AB. make an angle between 30° and 60°.
On the line PE, fix two pins at a distance of 5cm from each other and mark these as P and Q.
Look for the images of the pins at P and Q through the other face of the prism AC.
Fix two pins at R and S such that they appear as a straight line as that of the P and Q when it is viewed from AC face of the prism.
Remove the pins and the prism.
At point F, make the points R and S meet by extending them.
PQE is the incident ray which is extended till it meets face AC. SRF is the emergent ray which is extended backward to meet at point G.
Now mark the angle of incidence ∠i, angle of refraction ∠r and the angle of emergence ∠e and ∠D as shown in the experimental setup.
Repeat the experiment for more angles between 30° and 60°.

Observations

At surface AB, the light ray enters and bends towards the normal on refraction.
At surface AC, the light ray bends away from the normal as it travels from one medium (glass) to the other (air).
The angle of deviation is observed. Here, the emergent ray bends at an angle towards the direction of the incident ray.

Conclusion

The incident ray bends towards the normal when it enters the prism and while leaving the prism it bends away from the normal.
With the increase in the angle of incidence, the angle of deviation decreases. After attaining the minimum value, it increases with an increase in the angle of incidence.

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In triangle ABC,DE perpendicular to BC and angle d is equal to 52 degree ,AD/DE=AE/EC ,find angle ABC

Posted by Lululandia Kalagandya 5 years, 4 months ago

CBSE > Class 10 > Mathematics