If the sum of the coefficient in the expansion of is a and if the sum of the coefficients in the expansion of (1 + x 2) n is b, then :
(1) a = 3b (2) a = b 3 (c) b = a 3 (4) None of these
Kindly refer the same link for your query.
(Refer Q 2)
https://www.meritnation.com/ask-answer/question/q-write-the-sum-of-the-coffeicients-in-the-expansion-of-1-3x/binomial-theorem/2851297
Regards
(Refer Q 2)
https://www.meritnation.com/ask-answer/question/q-write-the-sum-of-the-coffeicients-in-the-expansion-of-1-3x/binomial-theorem/2851297
Regards