7.Binomial Theorem
easy

${({x^2} - x - 1)^{99}}$ ના સહગુણકનો સરવાળો મેળવો.

A

$1$

B

$0$

C

$-1$

D

એકપણ નહિ.

Solution

(c) Putting $x = 1$ in ${({x^2} – x – 1)^{99}}$

we get the sum of the coefficient of ${({x^2} – x – 1)^{99}}$

= ${({1^2} – 1 – 1)^{99}} = – 1$.

Standard 11
Mathematics

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