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Solve:
A. Let sin-1x = y
Where because “cos y” is +ve
⇒ sin y = x
where “x” is +ve as
As sin2y+cos2y = 1
⇒ where
⇒
According to the question,
⇒
⇒
Squaring both sides,
⇒
⇒
As x > 0
⇒
Solve:
Solve: