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If the sum of the zeros of the quadratic polynomial f(x) = kx^2 – 3x + 5 is 1, write the value of k.

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Question

If the sum of the zeros of the quadratic polynomial f(x) = kx2 – 3x + 5 is 1, write the value of k.

Sum
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Solution

We have to find the value of k, if the sum of the zeros of the quadratic polynomial  f(x) = kx2 – 3x + 5 is 1 is 1

Given

Sum of the polynomial = 1 

`(-text{Cofficient of x})/(text{Cofficient of }x^2)=1`

`-((-3)/k)=1`

`3 =1xxk`

`3 = k`

Hence, the value of k is = 3.

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Chapter 2: Polynomials - VERY SHORT ANSWER TYPE QUESTIONS (VSAQS) [Page 2.49]

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R.D. Sharma Mathematics [English] Class 10
Chapter 2 Polynomials
VERY SHORT ANSWER TYPE QUESTIONS (VSAQS) | Q 11. | Page 2.49
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