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Prove that: s inpi/(14)s in(3pi)/(14)s i...

Prove that: `s inpi/(14)s in(3pi)/(14)s in(5pi)/(14)s in(7pi)/(14)s in(9pi)/(14)s in(11pi)/(14)s in(13pi)/(14)=1/(64)`

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Prove that: sin(pi/14)sin((3pi)/14)sin((5pi)/14)sin((7pi)/14)sin((9pi)/14)sin((11pi)/14)sin((13pi)/14)=1/(64)

The value of sinpi/(14)sin(3pi)/(14)sin(5pi)/(14)sin(7pi)/(14)sin(9pi)/(14)sin(11pi)/(14)sin(13pi)/(14) is equal to___________

The value of sin(pi/14)sin((3pi)/14)sin((5pi)/14) is

The value of sin(pi/14)sin((3pi)/14)sin((5pi)/14) is

sin(9pi)/14sin(11pi)/14sin(13pi)/14 is equal to

The value of sin(pi/14)sin(3pi/14)sin(5pi/14)sin(7pi/14)sin(9pi/14)sin(11pi/14)sin(13pi/14) is equal to___________

Prove that: 2cos pi/(13) cos (9pi)/(13) +cos (3pi)/(13) +cos (5pi)/(13)=0

Prove that cos(2pi)/(15)cos(4pi)/(15)cos(8pi)/(15)cos(14pi)/(15)=1/(16)

Prove that cos "" (2pi)/(15) cos "" (4pi)/(15) cos "" (8pi)/(15) cos "" (14pi)/(15) = (1)/(16).

Prove that cos((2pi)/(15))cos((4pi)/(15))cos((8pi)/(15))cos((14pi)/(15))=1/(16)

ALLEN-TRIGONOMETRIC RATIOS AND IDENTITIES-All Questions
  1. The value of cos((2pi)/7)cos((4pi)/7)cos((6pi)/7) is a.-1//2 b. \ 1//...

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  2. The value of Pi(r=1)^(7)cos.(pi r)/(15) is

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  3. Prove that: s inpi/(14)s in(3pi)/(14)s in(5pi)/(14)s in(7pi)/(14)s in(...

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  4. Which of the following is correct?

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  5. Find the degrees and radians the angle between the hour hand and the ...

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  6. One angle of a triangle is (4x)/3 grades and another is 3x degrees, wh...

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  7. If in a Delta ABC, cot A + cot B + cot C = sqrt(3) . Prove that trian...

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  8. Length of E F is equal to- a.1+sqrt(3)-sqrt(6) b. \ 1+sqrt(3)-sqrt(2) ...

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  9. (log)(A E)((A C)/(C D)) is equal to a.sqrt(2) b. \ 1 c.\ 0 d. -1

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  10. Length of minor a r c(A C)i s- a.10pi b. \ 5pi c.\ 40\ pi/3 d. 20\ pi...

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  11. The value of (3-tan^2A)/(1-3tan^2A)+(3-tan^2B)/(1-3tan^2A)+(3-tan^2...

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  12. If cos(y-z)+cos(z-x)+cos(x-y)=-3/2, prove that cos x + cos y + cos z =...

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  13. Prove that cos 2a=2sin^(2)beta+4cos (alpha+beta)sin alpha sin beta+cos...

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  14. Prove that cosalpha+cosbeta+cosgamma(alpha+beta+gamma)=4cos(alpha+beta...

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  15. It cos(alpha+beta)=4/5,sin(alpha-beta)=5/(13)a n dalpha,beta lie betwe...

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  16. Prove that: s in^4pi/8+s in^4(3pi)/8+s in^4(5pi)/8+s in^4(7pi)/8=3/2

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  17. Prove that: sin6^0cos42^0cos 60^0s in 78^0=1/(16)

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  18. If cos theta = ( cos phi -e)/( 1- e cos phi ) , show that tan ""(th...

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  19. Prove that tan 82 (1(0))/(2)=(sqrt(3)+sqrt(2))(sqrt(2)+1) or cot 7 (...

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  20. Prove that : cosec theta + cosec 2 theta + cosec 2^2 theta +.............

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