Question

If lim _(x→0) (([(a – n)nx – tanx]sinnx)/x²) = 0, where n is non-zero real number, then a is

(a) 0

(b) n/n + 1

(c) n

(d) n + 1/n

Answer 1

Correct option  (d) n + 1/n

Explanation:

 

We have

(a – n) = 1/n

a = n + 1/n