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tan ^(1)(cotx) + cot ^(-1) (tan x)=pi -...

`tan ^(1)(cotx) + cot ^(-1) (tan x)=pi -2x`

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tan^(-1) (cot x) +cot^(-1)(tan x) =pi -2x

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if tan ^(-1) x+tan ^(-1) y+tan ^(-1) z=pi prove that x+y+z=xyz

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CHHAYA PUBLICATION-TRIGONOMETRIC INVERSE CIRCULAR FUNCTIONS-Short answer type questions
  1. cos^(-1)x= 2 sin ^(-1) sqrt((1-x)/(2))=2 cos ^(-1)""sqrt((1+x)/(2))=2t...

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  2. { cos (sin ^(-1) x)}^(2) ={sin (cos ^(-1) x)}^(2)

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  3. tan ^(1)(cotx) + cot ^(-1) (tan x)=pi -2x

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  4. tan^(-1) (cot x) +cot^(-1)(tan x) =pi -2x

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  5. sin cos ^(-1) tan (sec^(-1) x) = sqrt(2-x^(2))

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  6. sin "cosec"^(-1) cot (tan^(-1)x) =x

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  7. sin cot^(-1)cos (tan ^(-1)x)=sqrt((x^(2)+1)/(x^(2)+2))(x gt 0)

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  8. tan [(1)/(2) sin^(-1)""(2x)/(1+x^(2))+(1)/(2) cos ^(-1)""(1-y^(2))/(1...

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  9. cos (2cos ^(-1) x+sin ^(-1) x) , " when " x=(1)/(5) where 0 le ...

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  10. 2 tan ^(-1)""(1+x)/(1-x)+sin ^(-1)""(1-x^(2))/(1+x^(2))

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  11. tan (sin ^(-1)x+sin ^(-1) y) +tan (cos^(-1)x+cos ^(-1)y)

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  12. If xy=1 + a^(2) then show that tan^(-1) ""(1)/(a+x)+tan ^(-1) ...

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  13. "If " tan^(-1) x+ tan^(-1) y+tan ^(-1)z=(pi)/(2) , show that , x...

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  14. if tan ^(-1) x+tan ^(-1) y+tan ^(-1) z=pi prove that x+y+z=xyz

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  15. if cos^(-1)x+cos ^(-1)y+cos^(-1) z=pi prove that x^(2) +y^(2)+z...

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  16. "if " sin^(-1) x +sin ^(-1) y+sin ^(-1) z=pi show that , x^(4)+y...

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  17. IF cos (alpha +beta )=(5)/(13) and cos (alpha - beta )=(4)/(5), t...

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  18. If tan ^(-1) y= 4 tan ^(-1) x , find the algebric relation bet...

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  19. If tan ^(-1)x , tan ^(-1) y and tan^(-1) z are in A.P find t...

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  20. tan ^(-1) (x+1) + tan^(-1) (x-1) = tan ^(-1)"" (8)/(31)

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