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If tan theta = 1/b , then ( a sin ...

If ` tan theta = 1/b , ` then ` ( a sin theta - b cos theta )/( a sin theta + b cos theta)` is

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NEW JOYTHI PUBLICATION-TRIGONOMETRIC FUNCTIONS-EXERCISE
  1. If pi/2 lt theta lt 3 pi/2 then sqrt( (1-sin theta)/(1+ sin t...

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  2. sqrt((1+ cos theta)/( 1- cos theta)) + sqrt((1- cos theta)/( 1 + cos...

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  3. If tan theta = 1/b , then ( a sin theta - b cos theta )/( a ...

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  4. if ( cos A + cos B )/( sin A + sin B ) = k ( (sin A - sin B)/ ( ...

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  5. in a cyclic quadrilateral ABCD , cos A + cos B + cos C + cos ...

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  6. If tan x - tany = a and cot y - cot x =b , then cot (x-y) is

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  7. If tan 25 ^@ =a then ( tan 155^@ - tan 115^2 )/( 1+tan 155^2 ...

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  8. sin ^2 ""(2pi )/(7) + sin ^2"" (3pi )/(14) + sin ^2 ""(11 pi)/(14) ...

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  9. cos^2 ""(pi)/(8) + cos ^2 ""(3 pi)/(8) + cos ^2 ""(5 pi)/(8) + cos...

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  10. The minimum value of 7 cos theta + 24 sin theta is

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  11. sec ((pi)/(4) + theta ) . Sec ((pi)/(4) - theta ) is equal to

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  12. If sin A + cos A =m then sin ^6 A + cos ^6 A is

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  13. (cot theta + "cosec" theta -1)/( cot theta - "cosec" theta +1) is

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  14. If (sin (A+B))/( sin (A-B )) = (x+y)/(x-y) , then x/y

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  15. Let 0 lt a lt 1. if tan A =a and tan B= (1-a)/(1+a) then a possi...

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  16. (sin ^2 3A )/( sin ^2 A ) -( cos^2 3A )/(cos ^2 A ) is

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  17. If cos A = 3/4 then sin ""(A) /(2 ) . Sin 5 (A)/(2) is

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  18. cos A + cos ( 120 ^@+A ) + cos ( 120^@ -A ) is

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  19. cos ^3 A + cos^3 (120 +A ) + cos ^3 (120 - A) is

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  20. cos A .cos (120^@ +A ) . Cos (120 ^@ -A ) is

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