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Find the zeroes of the polynomial 2x²-9 and verify the relationship between zeroes and coefficients of the polynomial

Posted by Sinchana Mali Patil 4 years, 3 months ago

CBSE > Class 10 > Mathematics

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Last digit of 3^48 is

Posted by Raunak Singh Chauhan 4 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 3 months ago

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What number must be subtracted from each of the numbers 10, 11, 17, 19 to themso that they are in proportion?a)1b)8c)3d)7

Posted by Unicorn Shinchan 4 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

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1+i+i2+i3

Posted by Shalini Kharwal 4 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 4 years, 3 months ago

1+3i+3i

1+6i

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What is 3x-2y/34

Posted by 54 Chaitya Belani 4 years, 3 months ago

CBSE > Class 10 > Mathematics

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If x= 2 is a root of the equation 3x2 -2kx +5 = 0 , then find k

Posted by Akhilesh Samy 4 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Aryansh Singh 4 years, 3 months ago

-2 is the root of the equation , so x=-2 Putting the value of x in equation 3(-2)²- 5 (-2) +2k 12 +10 +2k=0 2k+22 =0 2k= -22 K= -11 Hence the value of k is - 11.

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Subham Mishra 4 years, 3 months ago

Given equation is 3x² -2kx +5 = 0 and x=2 So, 3(2)²-2k(2)+5=0 >3(4)-4k+5=0 >12-4k+5=0 >17-4k=0 >-4k=-17 >4k=17 >k=17/4

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If the product of zeroes of the polynomial (ax) 2 -6x-6 is 4.Find the value of a.

Posted by Adya Anwesha 4 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Subham Mishra 4 years, 3 months ago

ATQ, c/a=4 =>-6/a=4 =>4a=-6 =>a=-6/4=-3/2

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Explain why 3×5×7×11+11 is a composite number.

Posted by Alamalakala Sneha 4 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Saloni Harinkhede 4 years, 3 months ago

Answer: Composite numbers also known as composites in Mathematics are numbers that have more than 2 factors, not like prime numbers that have only one factor, i.e. 1 and the number itself. Composite numbers are all natural numbers that are not prime numbers since they can be divided by more than two numbers. 6 is composite, for instance, since it is divisible by 1, 2, 3 and even 6. Now consider 7 x 11 x 13 + 13 We can also write this as ⇒ (77 + 1) x 13 ⇒ 1014 So the factors are ⇒ 13 x 13 x 3 x 2 It is a composite number. The given number has more than two factors. Now consider 7 x 6 x 5 x 4 x 3 x 2 x 1 + 5 We can also write it as ⇒ 5(7 x 6 x 5 x 4 x 3 x 2 x 1 + 1) By calculation we get ⇒ 1009 x 5 It is a composite number. The given number has more than two factors. Hence proved.

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Find tan 15degree tan60 degree tan 75 degree

Posted by Shree Priya Singh 4 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Sankalp Srivastava 4 years, 3 months ago

Tan 15° = (90°-75°)Cot =cot 75° = 1/tan 75° So, Tan 15° = 1 / Tan 75°.....[1] Tan 60° = √3 According to question :- = Tan 15° * Tan 60° * Tan 75° = 1/Tan 75 ° * Tan 75° * Tan 60° = 1 * √3 = √3 Answer :- √3

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Shubham Maurya 4 years, 3 months ago

Hello

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Use Euclid’s Division Algorithm to find the HCF of: (i) 135 and 225

Posted by Brijesh Joshi 4 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Priyanka Choudhary 4 years, 3 months ago

What is Eulid division lemma

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Swarnamayee Swain 4 years, 3 months ago

HCF of 225 and 135 by using Euclid's Algorithm lemma:- 225=135×1+90 135=90×1+45 90=45×1+0 Since the divisor is 45 at the 3rd stage and the remainder is 0. Therefore the HCF of 135 and 225 is 45.

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Posted by Bhoopendra Verma 4 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Shivanya R 4 years, 3 months ago

Bhoopendra verma=Gg

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The angle of elevation of the top of a tower at a distance of 120m from a point A on the ground flagstaff fixed at the top of the tower , at A is 60° , then find the height of the flagstaff. [ Use √3 = 1.73]

Posted by Abiramishwari Karthikeyan 4 years, 3 months ago

CBSE > Class 10 > Mathematics

3 answers

Akshata Jadhav 4 years, 3 months ago

=207.6

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Shivanya R 4 years, 3 months ago

207.6 is the answer

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Ritik Gupta 4 years, 3 months ago

207.6

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Find the roots of x2 -(root2 +1)x + root2

Posted by Aman Raj 4 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

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33x² - 267x + 252 =0 Solve this equation in detail

Posted by Abid Khan 4 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Anil Yadav 4 years, 3 months ago

33x2-267x+252= 3(11x2-89x-84)=0=11x2-89x+84=11x2-77x-12x+84=11(x-7) -12(x-7)=(11x-12)(x-7) =12/11,7

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Ritik Gupta 4 years, 3 months ago

X=12/11 , X=7

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If sin A=3/4,calculate cos A and tan A

Posted by Anjali Mohanta 4 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Ritik Gupta 4 years, 3 months ago

√7/4 , 3/√7

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Is x³+2x²-7=0 a quadratic equation???

Posted by Pavan K Anchan 4 years, 3 months ago

CBSE > Class 10 > Mathematics

4 answers

Yeshwanth . 4 years, 3 months ago

No ,it is a cubic equation

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Vivek Soni 4 years, 3 months ago

No it is not a quadratic equation

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Aman Raj 4 years, 3 months ago

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Suchita Gawande 4 years, 3 months ago

No it not a quadratic equation

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Let x= 7/20×25 be a rational number. Then x has decimal expansion, which terminates

Posted by Swati Singh 4 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Manish Saxena 4 years ago

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5x²-6x-2 solution

Posted by Netra Vaghela 4 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Swati Singh 4 years, 3 months ago

5x^2 -6x-2 Quadratic polynomial can be factored using the transformation ax^{2}+bx+c=a(x-x1)(x-x2), where x1 and x2 are the solutions of the quadratic equation ax^2+bx+c=0. 5x^2-6x-2=0 All equations of the form ax^{2}+bx+c=0 can be solved using the quadratic formula: -b± sqrt{b^{2}-4ac} / 2a. The quadratic formula gives two solutions, one when ± is addition and one when it is subtraction. x=-(-6)± sqrt-6^{2} / 2×5 Square -6. x=-(-6)± sqrt{36-4) / 2×5 Multiply -4 times 5. x=-(-6)± sqrt(36-2) / 2×5 and so on ...................................... And after solving this whole u will get : x= 3- sqrt{19} / 5 Factor the original expression using ax^{2}+bx+c=a(x-x1)(x-x2). Substitute 3+sqrt{19}/ 5 for x1 and 3-sqrt{19}/ 5 3-sqrt{19}/ 5 for x2. The 2 zeros are ● 3+sqrt{19}/ 5 ● 3-sqrt{19}/ 5 And u can convert it into factors

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Prove that 10+5√3 is irrational

Posted by Keshav Sharma 4 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

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Kisi ke pas 10th ki ml aggarwal book hai Kya ka math ki

Posted by Subhash Singh 4 years, 3 months ago

CBSE > Class 10 > Mathematics

5 answers

Subhash Singh 4 years, 3 months ago

Solution hai

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Pradisha Gavara 4 years, 3 months ago

Yes hai

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Keshav Sharma 4 years, 3 months ago

Yes hai

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Subhash Singh 4 years, 3 months ago

Code 041 APC

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Subhash Singh 4 years, 3 months ago

Anyone tell me

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A 1.6m tall girl stands at a distance of 3.2m from a lamp pose and cast a shadow of 4.8m on the ground . Find the height of the lamp pose

Posted by Sweety Ng 4 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

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TanQ/1-cotQ + cotQ/1-tanQ = 1+ tanQ + cotQ

Posted by Jitin Yadav 4 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Ishwar Deshmukh 4 years, 3 months ago

$$ L H S = =1−tanxcotx+1−cotxtanx 1−tanxcotx+(1−cotx)(−tanx)tanx(−tanx) 1−tanxcotx−1−tanxtan2x 1−tanxcotx−tan2x=tanx(1−tanx)1−tan3x (1−tanx)(tanx)(1−tanx)(1+tanx+tan2x) 1+cotx+tanx= R H S Hence proved.

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Chp 8 exercise 8.4 ques 1

Posted by Masoom Sharma 4 years, 3 months ago

CBSE > Class 10 > Mathematics

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Check weather 75/455 is a terminating or non-terminating decimals

Posted by Mehak Sharma 4 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Yash Raj Sinha 4 years, 3 months ago

Non -terminating as the decimal is not in the form of 2m ×5n

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1. In a seminar, the number of participants in English, German and Sanskrit are 45,75 and 135. Find the number of rooms required to house them, if in each room, the same number of participants are to be accommodated and they should be of the same language.

Posted by Umang Mishra 4 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Saurabh Kumar Jat 4 years, 3 months ago

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Case study The Prime Minister’s Citizen

Posted by Ketul Jadav 4 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Kanya Kapoor 4 years, 3 months ago

What is cell

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If A and B are two or positive integers such that a >b then prove that one of the two numbers A + B by 2 and a-b by 2 is odd and the other is even

Posted by Sunny Yadav 4 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

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The difference between two numbers is 26 one number is three times the other. Find it.

Posted by Meena Krishnan 4 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Preetkumar Kayasth 4 years, 3 months ago

13 and 39

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Sanchit Kohli 4 years, 3 months ago

Let the large number be X Let the small number be Y According to the question, =》X–Y=26 =》X=26+Y THEN, X=13Y Putting the value of X we get =》26=3Y–Y =》26=2Y =》13=Y So the value of x=3Y Putting the value of Y we get =》X=3×13 =》X=39 HENCE,THE NUMBERS ARE 13 and 39

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A positive integer m when divided by 11 gives remainder 6.If 4m + 5 is divided by 11 the remainder is

Posted by Tanisha Panda 4 years, 4 months ago

CBSE > Class 10 > Mathematics