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Show that(i) sin^(-1)(2xsqrt(1-x^2))=2si...

Show that(i) `sin^(-1)(2xsqrt(1-x^2))=2sin^(-1)x ,-1/(sqrt(2))lt=xlt=1/(sqrt(2))`(ii) `sin^(-1)(2xsqrt(1-x^2))=2cos^(-1)x ,1/(sqrt(2))lt=xlt=1`

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