sin-1 (x) = 2 tan-1(x). number of solutions are - a) 1 b)2 c)3 d)5

Question

man mohan mishra · Answer

sin -1 x=2tan -1 x or sin -1 x=sin -1 (2x/1+x 2 ) . or x=2x/1+x 2 . or x+x 3 =2x . or x 3 -x=0 . hence x=0,-1,1 are the solutions of the equation. . therefore, number of solutions are 3.

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sin-1 (x) = 2 tan-1(x). number of solutions are - a) 1 b)2 c)3 d)5

sin-1 (x) = 2 tan-1(x). number of solutions are -

a) 1

b)2

c)3

d)5

1 Answers

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