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

The value of `tan^-1(1/3)+tan^-1(2/9)+tan^-1(4/33)+tan^-1(8/129)+....n` terms is:

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RD SHARMA ENGLISH-INVERSE TRIGONOMETRIC FUNCTION-All Questions
  1. Solve the following equations: sin^(-1)((3x)/5)+sin^(-1)((4x)/5)=sin^...

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  2. Prove that sin^(-1)(8/(17))+sin^(-1)(3/5)=cos^(-1)((36)/(85))

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  3. The value of tan^-1(1/3)+tan^-1(2/9)+tan^-1(4/33)+tan^-1(8/129)+....n ...

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  4. Find the value of tan^(-1)(x/y)-tan^(-1)((x-y)/(x+y))

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  5. Prove that: tan^(-1)(1/2tan2A)+tan^(-1)(cota)+tan^(-1)(cot^3A)={0 when...

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  6. "If"sin{cot^(-1)(x+1)}=cos(tan^(-1)x), then find x.

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  7. Solve the following equation for x : "cos"(tan^(-1)x)=sin(cot^(-1)3/...

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  8. Write each of the following in the simplest form: cot^(-1){a/(sqrt(x...

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  9. Evaluate: sin(cot^(-1)x)

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  10. Simplify each of the following: sin^(-1)((sinx+cosx)/(sqrt(2)))

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  11. Evaluate the following: sin^(-1)(sin 10)

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  12. Prove that: sec(tan^-1 1)+cos e c(cot^(-1) 1)=4

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  13. Prove that: "sin"[cot^(-1){"cos"(tan^(-1)x)}]=sqrt((x^2+1)/(x^2+2))

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  14. Evaluate: sin(cos^(-1)3/5+cos e c^(-1)(13)/5)

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  15. Find the value of the expression sin[cot^(-1){cos (pi/2)}]

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  16. Write the value of sin{pi/3-sin^(-1)(-1/2)}

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  17. If tan^(-1)x+tan^(-1)y=pi/4, then write the value of x+y+x ydot

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  18. Prove that 2tan^(-1)(sqrt((a-b)/(a+b))tan(theta/2))=cos^(-1)((acosthet...

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  19. Solve the following equation for x : tan^(-1)(1/4)+2tan^(-1)(1/5)+...

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  20. Write the value of cos^2(1/2cos^(-1)3/5)

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