Questions
If sum of the coefficients in the expansion is zero, then is equal to
detailed solution
Correct option is B
Sum of the coefficients =2−3c+c217We are given 2−3c+c217=0⇒c2−3c+2=0⇒c=1,2Talk to our academic expert!
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If the coefficients of P th, ( p + 1)th and (p + 2)th terms in the expansion of (1 + x)n are in AP, then
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