7.Binomial Theorem
normal

જો $(1 - 2x + 5x^2 - 10x^3) (1 + x)^n = 1 + a_1x + a_2x^2 + ....$ આપેલ હોય અને $a_1^2\,= 2a_2$ હોય તો $n$ ની કિમત મેળવો 

A

$6$

B

$2$

C

$5$

D

$3$

Solution

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Standard 11
Mathematics

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