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The number of roots of the equation 16se...

The number of roots of the equation `16sec^(3)theta-12tan^(2)theta-4sec theta=9` in interval `(-pi,pi)`.

A

1

B

2

C

0

D

3

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-TRIGNOMETRIC EQUATIONS-LECTURE SHEET (EXERCISE-II (Straight objectives Types Questions)
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  3. The number of roots of the equation 16sec^(3)theta-12tan^(2)theta-4sec...

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  8. The number of values of theta satisfying 4 cos theta + 3 sin theta = 5...

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  14. If 0lexlt2pi then the number of real values of x, which satisy the equ...

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  15. The number of solutions of sec^(2) theta + cosec^(2) theta + 2 cosec^(...

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  16. The number of solution is of the equations 2(sin^(4)2x+cos^(4)2x)+3sin...

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  17. The number of solutions of the equation 1+cosx+cos2x=sinx+sin2x+sin3x=...

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  18. The number of values of theta in the interval (-(pi)/2, (pi)/2) satist...

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  20. Number of solutions to the equation |2e^(sin x) - 3 - e^(2 sin x)|= | ...

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