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If \({\left({\sin }^{-1}x\right)}^{2}-{\left({\cos }^{-1}x\right)}^{2}=a,0 [JEE Main 2021, 27 Aug (Shift 1)]

Q1

If \({\left({\sin }^{-1}x\right)}^{2}-{\left({\cos }^{-1}x\right)}^{2}=a,0

[JEE Main 2021, 27 Aug (Shift 1)]

a

\(\cos \left(\frac{2a}{\pi }\right)\)

b

\(\cos \left(\frac{4a}{\pi }\right)\)

c

\(\sin \left(\frac{2a}{\pi }\right)\)

d

\(\sin \left(\frac{4a}{\pi }\right)\)

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