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Solve the following for x : cos^(-1)(...

Solve the following for `x :` `cos^(-1)((x^2 - 1)/(x^2 + 1))+t a n^(-1)\ ((2x)/(x^2-1))=(2pi)/3` .

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XII BOARDS PREVIOUS YEAR-BOARD PAPER SOLUTIONS-All Questions
  1. Using properties of determinants, prove the following: |[x,x^2,1+px^3]...

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  2. Prove the following: tan^(-1)(1/4)+tan^(-1)(2/9)=1/2cos^(-1)(3/5)

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  3. Solve the following for x : cos^(-1)((x^2 - 1)/(x^2 + 1))+t a n^(-1...

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  8. Prove that: int0^(pi/4)(sqrt(tanx)+sqrt(cotx)\ dx=sqrt(2)dotpi/2

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  19. Find the intervals in which the function f given by f(x)=\ x^3+1/(...

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  20. Prove that sin^(-1)(63/65)=sin^(-1)(5/13)+cos^(-1)(3/5)

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