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If π<α<3π2 then sqrt((1-cosalpha)/(1+co...

If π<α<3π2 then `sqrt((1-cosalpha)/(1+cosalpha))+sqrt((1+cosalpha)/(1-cosalpha))` is equal to (a) `2/(sinalpha)` (b) `-2/(sinalpha)` (c) `1/(sinalpha)` (d) `-1/(sinalpha)`

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CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
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  2. Let A B C be a triangle with /B=90^0 . Let AD be the bisector of /A wi...

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  3. If π<α<3π2 then sqrt((1-cosalpha)/(1+cosalpha))+sqrt((1+cosalpha)/(1-...

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  4. In which of the following sets the inequality sin^6x+cos^6x >5/8 hold...

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  5. Find the number of solutions of sinx=x/(10)

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  6. If the distances of the vertices of a triangle =ABC from the points of...

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  7. If 3π/4<α<π, then sqrt(2cotalpha+1/(sin^2alpha)) is equal to (a) 1+...

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  8. Which of the following identities, wherever defined, hold(s) good? (a...

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  12. For alpha=pi// which of the following hold (s) good?

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  15. If a and b are positive quantities, (a gt b) find minimum positive val...

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  16. The distance between two parallel lines is unity. A point P lies betwe...

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  17. If the equation cot^4x-2cos e c^2x+a^2=0 has at least one solution, t...

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  18. The smallest positive x satisfying the equation (log)(cosx)sinx+(log)(...

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  19. O is the circumcenter of A B Ca n dR1, R2, R3 are respectively, the r...

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