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If sec theta=2cos theta, where (pi/2) lt...

If sec `theta=2cos theta`, where `(pi/2) lt theta lt pi`, then what is the value of `theta` ?

A

`(5pi)/(6)`

B

`(2pi)/(3)`

C

`(3pi)/(4)`

D

`(11pi)/(12)`

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The correct Answer is:
A
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PUNEET DOGRA-TRIGONOMETRY-PREV YEAR QUESTIONS
  1. If sec theta=2cos theta, where (pi/2) lt theta lt pi, then what is the...

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  2. If cosec theta=(29)/(21),where 0 lt theta lt 90^@, then what is the va...

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  3. Consider the following sttements: 1. cos theta + sec theta can neve...

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  4. What is the length of the chord of a unit circle which subtends an ang...

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  5. If tanA-tanB=x and cotB-cotA=y, then cot(A-B)=?

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  6. What is sin(alpha+beta) - 2 sin alpha cos beta + sin(alpha- beta) =

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  7. If 2tanA = 3tanB = 1, then what is tan(A-B) equal to?

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  8. What is cos80^@ + cos 40^@ - cos20^@ equal to ?

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  9. What is cot(A//2)-tan (A//2) equal to?

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  10. What is cottheta+ cosecthetaequal to?

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  11. What is tan25^@tan15^@ + tan15^@ tan 50^@ + tan25^@ tan50^@ equal to ?

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  12. If sin theta=-1/2 and tan theta=(1)/(sqrt3) then in which quadrant doe...

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  13. If cos theta + sin theta = sqrt2cos theta," then " cos theta -sin thet...

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  14. In a circle of diameter 44 cm, the length of chord is 22cm. What is th...

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  15. What is (1+tan alpha tan beta)^2+(tan alpha-tan beta)^2-sec^2 alpha" "...

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  16. If p = sectheta - tan theta and q= "cosec"theta + cot theta, then what...

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  17. What is the value of (sin34^@cos236^@-sin56^@sin124^@)/(cos28^@cos...

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  18. tan54^@ can be expressed as

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  19. Consider the following(for next three) items: If p=Xcostheta-Ysinth...

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  20. Consider the following(for next three) items: If p=Xcostheta-Ysinth...

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  21. Consider the following(for next three) items: If p=Xcostheta-Ysinth...

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