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Show that cot.(pi)/(20). cot .(3pi)/(2...

Show that
`cot.(pi)/(20). cot .(3pi)/(20). cot.(5pi)/(20). cot .(7pi)/(20). cot.(9pi)/(20)=1`

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cot. (pi)/(20) cot. (3pi)/(20) cot. (5pi)/(20) cot. (7pi)/(20) cot. (9pi)/(20) cot. (15pi)/(20)=

S.T cot.(pi)/(16).cot.(2pi)/(16).cot.(3pi)/(16).....cot.(7pi)/(16)=1

cot((pi)/4-2cot^(-1)3)=

cot (- (15pi)/(4))

The value of "cot"(7pi)/(16)+"2 cot"(3pi)/(8)+"cot"(15pi)/(16) is

The value of cot(7pi)/16 + 2 cot(3pi)/8 + cot(15pi)/16 is:

The value of cot(7pi)/16 + 2cot(3pi)/8 + cot(15pi)/16 is:

cos ((5pi)/(4)) - sin ((5pi)/(4)) + tan((11pi)/(4)) - cot((11pi)/(4))=

The value of "cot" (7 pi)/(16) + "2 cot" (3pi)/(8) + "cot" (15 pi)/(16) is

cos ((3pi )/( 2 ) + x) cos (2pi + x) [cot ((3pi)/( 2)- x ) + cot (2pi +x) ]=1

VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-TRIGONOMETRIC RATIOS UPTO TRANSFORMATIONS-EXERCISE - 6(A)
  1. If sec theta + tan theta =5, then find sin theta and determine the qu...

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  2. Prove that sin 780^(@) sin 480^(@)+cos240^(@). Cos300^(@) = 1/2

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  3. Show that cot.(pi)/(20). cot .(3pi)/(20). cot.(5pi)/(20). cot .(7pi)...

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  4. Simplify. (sigmatauv(-(11pi)/3)taualphav((35pi)/6)sigmaepsilonchi(-(...

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  5. If tan20^(@)=p then prove that = (tan610^(@)+tan700^(@))/(tan 560^(@)-...

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  6. If alpha , beta are complementry angles such that bsin alpha = a, the ...

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  7. If cos A = cos B = -1/2 and A does not lie in the second quadrant and ...

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  8. If 8 tan A = -15 and 25 sin B = -7 and neither A nor B is in the four...

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  9. If A, B, C, D are angles of a cyclic quadrilateral then P.T sin A - s...

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  10. If A,B,C,D are the angles of a cyclic quadrilateral then cos A + cos...

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  11. If 3sin A + 5 cos A = 5, then show that 5 sin A - 3 cos A = +- 3.

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  12. If tan^(2)theta = (1-e^2) show that sec theta + tan^(3). "cosec" theta...

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  13. Prove the following. (1+cottheta-cosectheta)(1+tantheta+sectheta)=2.

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  14. కింది వాటిని నిరూపించంది. 3(sin theta - cos theta)^(4) + 6(sin theta +...

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  15. కింది వాటిని నిరూపించంది. (sin theta + cosec theta)^(2) + (cos theta +...

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  16. కింది వాటిని నిరూపించంది.(cos^(4) alpha + 2cos^(2) alpha [1- 1/sec^(2)...

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  17. కింది వాటిని నిరూపించంది.(1+ sin theta - costheta)^(2)/(1+ sin theta +...

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  18. If (2sigmatauvtheta)/((1+chiosigmatheta+sigmatauvtheta)=x, then find t...

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  19. Eliminating theta from the following (i) x = a cos^(3) theta " " y...

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  20. కింది వాటిలో thetaను లోపింప చేయంది. i) x =a cos^(4)theta , y = b sin^(...

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