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If sin^(- 1)(3/x)+sin^(- 1)(4/x)=pi/2 t...

If `sin^(- 1)(3/x)+sin^(- 1)(4/x)=pi/2` then `x=`

A

-5

B

5

C

25

D

-25

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-INVERSE TRIGONOMETRIC FUNCTIONS-ASSIGNMENT (SECTION - A)(OBJECTIVE TYPE QUESTIONS (ONE OPTION IS CORRECT))
  1. If sin^(-1)(x-(x^2)/2+(x^3)/4-ddot)+cos^(-1)(x^2-(x^4)/2+(x^6)/4)=pi/2...

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  2. if tan^(-1)(1/x)+cos^(-1)(2/sqrt5)=pi/4 then x equals

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  3. about to only mathematics

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  4. If x1=cos^(-1)(3/5)+cos^(-1)((2sqrt2)/3)and x2=sin^(-1)(3/5)+sin^(-1)(...

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  5. If tan(sin^(-1)sqrt(1-x^2))=sin(tan^(-1)2) then x is

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  6. If 0 le x le 1 then cos^(-1)(2x^(2)-1) equals

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  7. Express in terms of : sin^(-1)(2xsqrt(1-x^(2))) to sin^(-1)x for 1gexg...

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  8. If sin^(-1)(5/x)+sin^(-1)((12)/x)=pi/2, then x is equal to 7/(13) (b)...

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  9. y=tan^(-1)((sqrt(1+x^2)+sqrt(1-x^2))/(sqrt(1+x^2)-sqrt(1-x^2))),w h e ...

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  10. If cos^(-1)""x/a+cos^(-1)""y/b=theta, Prove that x^(2)/a^(2)-(2xy)/(ab...

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  11. tan^(-1)(1/2)+tan^(-1)(1/3) is equal to

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  12. cos(tan^(-1)3/4)+cos(tan^(-1)x) is equal to

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  13. If cot^(-1)x+tan^(-1)(1/2)=pi/4 then x is

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  14. The value of cos^(-1)(-1)+sin^(-1)(1) is

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  15. If sin^(- 1)(3/x)+sin^(- 1)(4/x)=pi/2 then x=

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  16. The domain of the function f(x)=cos^(-1)((2-absx)/4) is

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  17. The domain of definition of the function f(x)=sqrt(sin^(-1)(2x)+pi/6) ...

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  18. tan^(-1)x-tan^(-1)y=tan^(-1)((x-y)/(1+xy)) holds good for

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  19. If sin^(-1)x+sin^(-1)(1-x)+cos^(-1)x=0, then x is

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  20. sin^(-1)(sinx)=x if

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