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How issin^-1 x = cos^-1 Yis equals to. y =(1-x^2 )^ 1/2.Please explain sir

milind , 10 Years ago
Grade 12
anser 1 Answers
Jitender Singh

Last Activity: 10 Years ago

Ans:
sin^{-1}(x) = cos^{-1}(y)
Let
t = cos^{-1}(y)
cos(t) = coscos^{-1}(y)
cos(t) = y
sin(t) = \sqrt{1-y^{2}}
t = sin^{-1}(\sqrt{1-y^{2}})
sin^{-1}(x) = sin^{-1}(\sqrt{1-y^{2}})
\Rightarrow x = \sqrt{1-y^{2}}
Thanks & Regards
Jitender Singh
IIT Delhi
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