. x belongs to the interval
If [sin-1cos-1 sin-1 tan-1 x] = 1, where [.] denotes the greatest integer function, then x belongs to the interval
A. [tan sin cos1, tan sin cos sin1]
B. [tan sin cos1, tan sin cos sin1]
C. [1, -1]
D. [ sin cos tan1, sin cos sin tan1]
Best Answer
Ans: A
Sol: We have [ sin-1 cos-1 sin-1 tan-1x] =1
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