CBSE > Class 10 > Mathematics | CBSE Board | Homework Help

Prove √2 or √3 is irrational. Since √2 or √3 is irrational, √6 (product of irrational numbers) are irrational. Since sum of two Irrationals are always irrational, √6 - √5 are irrational. Hence, proved.

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11x+15y+23=0 ; 7x-2y-20=0

Posted by Shubh Pathak 4 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Adithya Dev A 4 years, 6 months ago

Scroll down to see the answer for the same question (Mohan Malasi). The answer is x = 2 and y = -3.

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Adarsh Rai 4 years, 6 months ago

Karna kya hai isme

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Theorem 1.5

Posted by Anand Kumar 4 years, 6 months ago

CBSE > Class 10 > Mathematics

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Find the nature of roots of the quadratic equation 2x square-√5x+ I=o.

Posted by Naveen Kumar 4 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Adithya Dev A 4 years, 6 months ago

Discriminant = b^2 - 4ac = (-√5)^2 - 4 * 1 * 2 = 5 - 8 = -3. Therefore, no real root exists for the above equation.

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Naveen Kumar 4 years, 6 months ago

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Solve the following systems of equations 11x+15x+23=0 7x-2y-20 =0

Posted by Aditi Malasi 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Adithya Dev A 4 years, 6 months ago

11x + 15y = -23 ---- (1) ////// 7x - 2y = 20 ---- (2). Take equation (2). Thus, x = 20 + 2y / 7// ---- (A). Equating (A) to (1), we get :- 11 (20 + 2y / 7) + 15y = -23 => 220 + 22y / 7 + 15y = -23 => 220 + 22y + 105y = -161 => 127y = -161 - 220 => 127y = -381 => y = -3// Therefore, x = 20 + 2y / 7 = 20 - 6 / 7 = 14 / 7 = 2//

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Solve the following systems of equations 11x+15y+23=0 7x-2y-20=0

Posted by Aditi Malasi 4 years, 6 months ago

CBSE > Class 10 > Mathematics

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Sia ? 4 years, 6 months ago

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Use euclid s algorithm to find the HCF of 4052 and 12576

Posted by Snowie Bakshi 4 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Preeti Dabral 4 years, 4 months ago

According to Euclid’s Division Lemma if we have two positive integers a and b, then there exist unique integers q and r which satisfies the condition a = bq + r where 0 ≤ r ≤ b.

HCF is the largest number which exactly divides two or more positive integers.

Since 12576 > 4052

12576 = (4052 × 3) + 420

420 is a reminder which is not equal to zero (420 ≠ 0).

4052 = (420 × 9) + 272

271 is a reminder which is not equal to zero (272 ≠ 0).

Now consider the new divisor 272 and the new remainder 148.

272 = (148 × 1) + 124

Now consider the new divisor 148 and the new remainder 124.

148 = (124 × 1) + 24

Now consider the new divisor 124 and the new remainder 24.

124 = (24 × 5) + 4

Now consider the new divisor 24 and the new remainder 4.

24 = (4 × 6) + 0

Reminder = 0

Divisor = 4

HCF of 12576 and 4052 = 4.

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How many types of blood in our body and name them?

Posted by Prakash Jaiswal 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Adithya Dev A 4 years, 6 months ago

There are generally two types of blood flowing through the human body namely :- 1) OXYGENATED BLOOD = Blood which is abundant in oxygen. This blood enters the Left atrium of the heart and is then passed on to Left Ventricle from where it is pumped to other cells. 2) DEOXYGENATED BLOOD = Blood abundant in carbon dioxide. Enters right atrium then into right ventricle and finally pumped to lungs for purification.

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For a natural number n, the number 6n will always end in the digit.

Posted by Moksha Sahu 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Adithya Dev A 4 years, 6 months ago

6. Eg :- 6^2 = 36, 6^3 = 216, etc.

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If tan A =3/4 show that sin A cos A = 12/25

Posted by Ibex Gamer 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Adithya Dev A 4 years, 6 months ago

tan A = 3/4 ==> sin A/cos A = 3/4. Hypotenuse = √(3)^2 + (4)^2 = √9 + 16 = √25 = 5 units. Therefore, sin A * cos A = 3/5 * 4/5 = 12/25// Hence proved.

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The probability of discarding a rotten egg from a lot of 400 is 0.0 35 how many rotten eggs were found in a lot of 1000

Posted by Kaartikeya Tyagi 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Adithya Dev A 4 years, 6 months ago

Rotten eggs = 35.

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Jai Hind Dosto ??

Posted by ?Sᴀʀᴋᴀʀ? ▄︻┻┳═一 ? Ꭰꭿꭰꭰꮍ ? 4 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Adithya Dev A 4 years, 6 months ago

Jai Bharat !!!! ????????

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Ravi Tigga 4 years, 6 months ago

Jai hind bro

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Using Euclid's division algorithm find the hcf of the number 781and365

Posted by Anchal Singh Rajput 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Adithya Dev A 4 years, 6 months ago

HCF (781, 365) = 1.

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Solve the following pair of linear equation by elimination method 5x-8y=11 & -10+6y=-22

Posted by Aakanksha Gupta 4 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Adithya Dev A 4 years, 6 months ago

X = 2.2, Y = 0. Hope it benefits.

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Aakanksha Gupta 4 years, 6 months ago

Please give me a answer

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If the mean of (X - 5Y), (X - 3Y), (X + Y),(X + 3Y) and (X + 5Y) is 12...now find the value of X..?

Posted by Army Blink 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Adithya Dev A 4 years, 6 months ago

Mean = (X - 5Y + X - 3Y + X + Y + X + 3Y + X + 5Y) / 5 = X + X + X + X + X + Y /5 = 12. 5X + Y / 5 = 12. 5X + Y = 60. 5X = 60 - Y. X = 60 - Y / 5//.

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Form polynomial if alpha + betta is 3/2 and alpha×beta is -5

Posted by Reva Savla 4 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Akshat Puri 4 years, 6 months ago

Given- α+β=3/2 αβ =-5 We know that quadrant equation is of the form: x²-(α+β)x+(αβ) =0 x²-3x/2-5=0 (2x²-3x-10)/2=0 2x²-3x-10=0

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Adithya Dev A 4 years, 6 months ago

Sum (s) = 3/2 and Product (p) = -5. Polynomial p(x) = k (x^2 - sx + p) = k (x^2 - 3/2x - 5) = k (2x^2 - 3x - 10)//

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If a IA

Posted by Tushar Yadav 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Aastha Choudhary 4 years, 6 months ago

Iska Matlab??

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Form polynomial when alpha is 1/3 and beta is -3/2

Posted by Reva Savla 4 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Akshat Puri 4 years, 6 months ago

Given- α=1/3 β=-3/2 Sum of zeroes, α+β=(1/3) +(-3/2) =-7/6 Product of zeroes, αβ= (1/3) *(-3/2) =-1/2 We know that quadratic equation is of the form: x²-(α+β)x+(αβ)=0 x²-(-7/6) x+(-1/2) =0 x²+7x/6-1/2=0 Take the L. C. M. Of 1,6,2=6 (6x²+7x-3) /6=0 6x²+7x-3=9

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Adithya Dev A 4 years, 6 months ago

Sum (S) = 1/3 + (-3/2) = 2/6 - 9/6 = -7/6// Product (P) = 1/3 * -3/2 = -3/6// Polynomial p (x) = k(x^2 - Sx + P) = k (x^2 + 7/6x - 3/6) = k (6x^2 + 7x - 3)//

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Bangla

Posted by Rani Kumari 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Adithya Dev A 4 years, 6 months ago

Kindly provide more clarity to what you are asking.

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find the HCF of 56,96and 324 by Euclid algorithm

Posted by Kanganheri Mcd 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Adithya Dev A 4 years, 6 months ago

HCF (56, 96, 324) = 4//

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Show that any positive integer is of the form 3q or 3q+1 or 3q+2 for some integer q.

Posted by Sumit Shrivastava 4 years, 6 months ago

CBSE > Class 10 > Mathematics

3 answers

Akshat Puri 4 years, 6 months ago

Let any positive integer be q. If divide q by 3 we get the remainders 0,1,2 which can be written as 3q, 3q+1, 3q+2 for some integer q. Hence any positive integer is of the form 3q or 3q+1 or 3q+2.

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Prakhar And Pratush Pandey 4 years, 6 months ago

I don't NO

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Aniket Pandey 4 years, 6 months ago

WkwjensnsnjeiA3b6b

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Cos theta - sin theta =

Posted by Ansh Tiwari 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Adithya Dev A 4 years, 6 months ago

cos theta - sin theta = √sin^2 theta + cos^2 theta - 2 sin theta cos theta = √1 - 2 sin theta cos theta//

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For any positive integer is n, prove that n³-n divisible by 6

Posted by Sk Jishan 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Simran Panwar 4 years, 6 months ago

Out of three (n – 1), n, (n + 1) one must be even, so a is divisible by 2. 2. (n – 1) , n, (n + 1) are consecutive integers thus as proved a must be divisible by 3. Thus, n³ – n is divisible by 6 for any positive integer n.

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Send me paid sample paper 3

Posted by .. S 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

.. S 4 years, 6 months ago

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find theZero of the the polynomial if any-x²-2x+3

Posted by Riya Dhillon 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Adithya Dev A 4 years, 6 months ago

- (x^2 + 2x - 3) = 0. (S = 2, P = -3, No :- 3, -1). x^2 + 3x - x - 3 = 0. x (x + 3) - (x + 3) = 0. (x - 1) (x + 3) = 0. x = 1 or -3//

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Find the longest diameter of a cone, which can be fully fitted in a cube of edge 8 cm. Justify your answ

Posted by Vaishnavi Shinde 4 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Adithya Dev A 4 years, 6 months ago

Diameter = 8 cm. When looked from underneath, the base of cone inside the cube looks like a square circumscribing a circle. This means that the diameter of the circular base of the cone is equivalent to the edge of the square base of the cube.

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Prove that X+3 is irrational

Posted by Karpagagnesan N 4 years, 6 months ago

CBSE > Class 10 > Mathematics