Number of solution(s) of the equation cos^{-1}(e^{x}) + sin^{-1}(kx^{2}-2)=\frac{\pi }{2},k>0, is
A)0 B) 1 C) 2 D) infinite
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5 Answers
39For their sum to be pi/2, cos-1 and sin-1 must have same input.
ex = kx2 - 2
Ab toh solve kar hi loge?
Dunno if there's a restriction on that property though. Others better check this.
1NAHI SAME INPUT HO ZAROORI NAHI --- I THINK
VAISE MERA BHEJA EK DAM DULL HAI
1I guess my ans may be correct. That's A). I'm not sure it's A).