Mixed Application MCQs

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Try the first 5 questions

1.
tan^(-1)(1/3)+tan^(-1)(1/5)+tan^(-1)(1/7)+tan^(-1)(1/8) equals:
2.
If 3sin^(-1)(x) = pi - sin^(-1)(3x-4x^3), the valid range of x is:
3.
tan(sin^(-1)(3/5)+cos^(-1)(5/13)) equals:
4.
Number of real solutions of tan^(-1)(sqrt(x(x+1)))+sin^(-1)(sqrt(x^2+x+1))=pi/2:
5.
sin^(-1)(x)+sin^(-1)(1-x) = cos^(-1)(x) has solutions:

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