please clarify one doubt..... sin(cot^-1(cos(tan^-1x)))....... you have to reduce to the lowest form

Asked by  | 7th May, 2008, 04:55: PM

Expert Answer:

tan-1 x = cos-1 (1 / (1+x2)1/2)

cot-1 (1 / (1+x2)1/2) = sin-1(  (1+x2)1/2 /(2+x2)1/2  )

ans is = (1+x2)1/2 /(2+x2)1/2

Answered by  | 10th Aug, 2008, 04:05: AM

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