Grade 12Trigonometry
prove that, {cos(sin-1x)}2={sin(cos-1x)}2
prove that, {cos(sin-1x)}2={sin(cos-1x)}2
1 Answer
Akshay
put (cos sin-1 x)2 = 1 – (sin sin-1x)2, as [cos2x + sin2x=1],
lhs = 1-x2,
similarly for rhs.
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