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Find the Value of tan 82 1/2^@...

Find the Value of `tan 82 1/2^@`

A

`sqrt2+sqrt3+sqrt4+sqrt6`

B

`(sqrt3+sqrt2)(sqrt2-1)`

C

`-(sqrt3+sqrt2)(sqrt2+1)`

D

none of these

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The correct Answer is:
A
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OBJECTIVE RD SHARMA ENGLISH-TRIGONOMETRIC RATIOS AND IDENTITIES-Exercise
  1. If pi lt alpha lt (3pi)/(2), then find the value of expression sqrt(4 ...

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  2. If alpha is an acute angle and sin(alpha/2)=sqrt((x-1)/(2x)) then tan ...

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  3. Find the Value of tan 82 1/2^@

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  4. The value of tan6^0tan42^0tan66^0tan78^0 is 1 (b) 1/2 (c) 1/4 (d)...

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  5. The value of cot36^(@)cot72^(@), is

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  6. The value of cospi/7+cos(2pi)/7+cos(3pi)/7+cos(4pi)/7+cos(5pi)/7+cos(6...

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  7. Find the value of cos(2pi)/7+cos(4pi)/7+cos(6pi)/7

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  8. The value of cos""(pi)/(9)cos""(2pi)/(9)cos""(3pi)/(9), is

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  9. Prove that cos ""(pi)/(9) cos ""( 2pi)/(9) cos "" (3pi)/(9) cos ""(4pi...

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  10. The vlaue of cosec^(2)""(pi)/(7)+cosec^(2)""(2pi)/(7)+cosec^(2)""(3pi)...

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  11. sin1 2^(@)sin4 8^(@)sin5 4^(@)=

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  12. the value of sin(pi/7)+sin((2pi)/7)+sin((3pi)/7) is

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  13. tan^6pi/9-33tan^4pi/9+27tan^2pi/9 is equal to (a) 0 (b) sqrt(3) (c)...

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  14. (sin^2 3A)/(sin^2A)-(cos^2 3A)/(cos^2A)=

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  15. If sinA=(336)/(625)where450^(@)ltAlt540^(@), then sin""(A)/(4)=

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  16. If y=(tanx)/(tan3x), then

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  17. The value of cot^(2)""(pi)/(7)+cot^(2)""(2pi)/(7)+cot^(2)""(3pi)/(7), ...

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  18. The value of sin""(pi)/(7)+sin""(2pi)/(7)+sin""(3pi)/(7), is

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  19. Prove that sin. (2pi)/(7)+sin.(4pi)/(7)+sin. (8pi)/(7)=(sqrt(7))/(2).

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  20. cos""(2pi)/(15)cos""(4pi)/(15)cos""(8pi)/(15)cos""(16pi)/(15)=(1)/(16)

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