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14. Find the quadratic polynomial whose zeros are2/3 and 1 Verify therelation between the coefficients and the zeros of the polynomial.415​

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AnSwEr

{\tt{\red{\underline{\large{Given}}}}}

  • ZEROES of polynomial is 2/3 and 1

{\sf{\green{\underline{\large{To\:Verify}}}}}

  • Relationship between coefficient and zeroes
  • Finding quadratic polynomial

{\sf{\pink{\underline{\Large{Explanation}}}}}

Let the zeroes of the polynomial be\tt\alpha{and}\beta

Then,

\tt\alpha{+}\beta=\dfrac{-b}{a}{=}\dfrac{2}{3}+1=\frac{5}{3}

&

\tt\alpha{\times}\beta{=}\frac{c}{a}=\frac{2}{3}\times{1}=\frac{2}{3}

Here,we CONCLUDE that

a=3

b=-5

C=2

Now CREATING the quadratic polynomial

☞k(3x²-5x+2)

Coefficient Relationship

\tt\alpha{+}\beta=\dfrac{-b}{a}{=}\dfrac{2}{3}+1=\frac{5}{3}

\tt\rightarrow\alpha{+}\beta{=}\dfrac{Cofficient\:of\:X}{Cofficient\:of\:x^2}

&

\tt\alpha{\times}\beta{=}\frac{c}{a}=\frac{2}{3}\times{1}=\frac{2}{3}

\tt\rightarrow{\large\alpha{\times}\beta{=}\dfrac{Constant\:term}{Cofficient\:of\:x^2}}

Hence,RELATION verified



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