the domain of f(x)=root under cos^-1x-sin^-1x is [a,b].find 5a^2+b^2

1.	the domain of f(x)=root under cos^-1x-sin^-1x is [a,b].find 5a^2+b^2
Answer» the domain of f(x)=root under cos^-1x-sin^-1x is [a,b].find 5a^2+b^2

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