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Prove that: cot^(-1)((sqrt(1+sinx)+sqrt(...

Prove that: `cot^(-1)((sqrt(1+sinx)+sqrt(1-sinx))/(sqrt(1+sinx)-sqrt(1-sinx)))=x/2,x in (0,pi/4)`

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`((sqrt(1+sinx)+sqrt(1-sinx))/(sqrt(1+sinx)-sqrt(1-sinx)))*((sqrt(1+sinx)+sqrt(1-sinx))/(sqrt(1+sinx)+sqrt(1-sinx)))`
`((sqrt(1+sinx)+sqrt(1-sinx))^2/(1+sinx-1+sinx))`
`(1+sinx+1-sinx+2sqrt((1+sinx)(1-sinx)))/(2sinx)`
`(2+2sqrt(1-sin^2x))/(2sinx)`
`(1+cosx)/sinx`
`(1+2cos^2(x/2))/(2cos(x/2)sin(x/2))`
`cot(x/2)`
`cot^(-1)(cos(x/2))`
...
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CENGAGE PUBLICATION-INVERSE TRIGONOMETRIC FUNCTIONS-All Questions
  1. Find the value of sin(1/2cot^(-1)(-3/4))

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  2. Solve sin^(-1)(1-x)-2sin^(-1)x=pi/2

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  3. Prove that: cot^(-1)((sqrt(1+sinx)+sqrt(1-sinx))/(sqrt(1+sinx)-sqrt(1-...

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  4. Simplify sincot^(-1)tancos^(-1)x , x >0

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  5. If tan^(-1)(x^2+3|x|-4)+cot^(-1)(4pi+sin^(-1)sin 14)=pi/2, t h e n th...

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  6. If 2tan^(-1)x+sin^(-1)((2x)/(1+x^2)) is independent of x , then (a)x >...

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  7. Equation 1+x^2+2x"sin"(cos^(-1)y)=0 is satisfied by (a) exactly one...

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  8. To the equation 2^(2pi//cos^(-1)x) - (a + (1)/(2)) 2^(pi/cos^(-1)x) -a...

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  9. Let alpha = sin^(-1) ((36)/(85)), beta = cos^(-1) ((4)/(5)) and gamma ...

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  10. If Sn=cot^(-1)(3)+cot^(-1)(7)+cot^(-1)(13)+cot^(-1)(21)+....n terms, t...

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  11. The value of tan[cos^(-1)(4/5)+tan^(-1)(2/3)] is 6/(17) (b) 17/(6) (...

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  12. If tan^(-1)((sqrt(1+x^2)-1)/x)=4^0 then (a)x=tan2^0 (b) x=tan4^0 (c)...

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  13. The value of 2tan^(-1)(cos e ctan^(-1)x-tancot^(-1)x) is equal to (a...

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  14. The value of cot(sum(n=1)^(23)cot^-1(1+sum(k=1)^n2k)) is

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  15. The trigonometric equation sin^-1x=2sin^-1 2a has a real solution if

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  16. If f(x)=x^(11)+x^9-x^7+x^3+1 and f(sin^(-1)(sin8))=alpha,alpha is cons...

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  17. If sin^(-1)x+sin^(-1)y=pi/2,t h e n(1+x^4+y^4)/(x^2-x^2y^2+y^2) is equ...

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  18. A particle just clears a wall of height b at distance a and strikes ...

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  19. There exists a positive real number of x satisfying "cos"(tan^(-1)x)=x...

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  20. The value of "tan"(sin^(-1)("cos"(sin^(-1)x)))"tan"(cos^(-1)(sin(cos^(...

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