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The numerical value of 4(cot^(-1)3 + si...

The numerical value of `4(cot^(-1)3 + sin^(-1) 1/sqrt5)` =______.

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A DAS GUPTA-Inverse Circular Functions -Exercise
  1. The numerical value of 2tan^(-1) (1/3) +tan^(-1) (1/7)=.

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  2. sin^(-1) (sqrt(x/(x+a))) = tan^(-1)().

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  3. The numerical value of 4(cot^(-1)3 + sin^(-1) 1/sqrt5) =.

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  4. The numerical value of cos{tan^(-1)(-3) + cot^(-1)(-3)} =.

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  5. The numerical value of sec^(2)(tan^(-1)2) + cosec^(2)(cot^(-1)3) =.

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  6. 2sin^(-1) (sqrt(1-x)/2) = cos^(-1)().

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  7. sin^(-1)(3x -4x^(3)) = lambda sin^(-1)x then lambda =.

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  8. The numerical value of tan^(-1) 1+ tan^(-1)2 + tan^(-1)3 =.

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  9. The numerical value of tan^(-1) 1+ tan^(-1) (1/2) + tan^(-1) (1/3) =.

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  10. If x gt 1 then 2tan^(-1)x - tan^(-1) ((2x)/(1-x^(2))) =.

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  11. cos^(-1) (63/65) + 2tan^(-1) (1/5)= sin^(1) ().

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  12. The principal value of cos^(-1) (cos 7pi/6)= .

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  13. The value of sin{tan^(-1) (tan ((7pi)/6) + cos^(-1)(cos ((7pi)/3))} is...

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  14. sin[cot^(-1) {tan(cos^(-1)x)}] is equal to

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  15. 2tan^(-1)x = tan^(-1) 2x/(1-x^(2)) is true if

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  16. If tan^(-1)x+ tan^(-1)y + tan^(-1)z = pi, prove that x + y + z = xyz.

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  17. Prove that : cos^(-1).(3)/(5)+ cos^(-1).(12)/(13) = sin^(-1)((63)/(65...

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  18. If x gt 1 then 1/2 cos^(-1) ((x^(2)-1) /(x^(2)+1)) = tan^(-1).

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  19. If tan^(-1) 1/2 + tan^(-1) a = pi/4 then a = .

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  20. Prove that sin^(-1) (cos (sin^(-1) x)) + cos^(-1) (sin (cos^(-1) x))=...

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