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Which of the following is not possible ?...

Which of the following is not possible ?

A

`sin theta = 5/7`

B

`cos theta = 3/2`

C

`tan theta = 100`

D

`sec theta = 5/2`

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AAKASH SERIES-TRIGONOMERTIC RATIOS-PRACTICE EXERCISE
  1. ( sqrt(1-cos^(2)200^(@)))cosec 200^(@)=

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  2. If x= cos 10^(@) - sin 10^(@) then

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  3. Which of the following is not possible ?

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  4. The equation sin x= k + 1/k ( k gt 0) is

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  5. Which one of the following is true ?

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  6. I: If x= sin 1 , y= sin1^(@) then x lt y II : If x = cos 1 , y ...

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  7. If A=tan 1, B = tan. 9/5 then

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  8. A= sin 1, B = cos 1, C = tan 1 then the ascending order is

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  9. If Sin theta(1) + Sin theta(2) + Sin theta(3) = 3 then Cos theta(1) + ...

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  10. If Cos theta(1) + Cos theta(2) + Cos theta(3) = 3 then Sin theta(1) +...

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  11. If cos theta + sec theta = 2 then cos^(n) theta + sec^(n) theta =

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  12. If cot theta + tan theta = 2 then cot^(n) theta + tan^(n) theta =

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  13. If cot ( alpha + beta) = 0 then sin ( alpha + 2 beta) =

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  14. If tan ( alpha + beta) = sqrt(3), tan ( alpha - beta ) =1 then tan 6 ...

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  15. If n is even then sin theta + sin ( pi + theta ) + sin (2 pi + theta) ...

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  16. sin 10^(@) + sin 20^(@) + sin30^(@) + .......sin 360^(@)=

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  17. cos 20^(@) + cos 40^(@) + cos 60^(@) +...+cos160^(@)+cos 180^(@)=

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  18. cos5^(@) + cos 24^(@) + cos 175^(@) + cos 204^(@) + cos 300^(@) =

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  19. cos. (pi)/(13) + cos. (5pi)/(13) + cos. (8pi)/(13) + cos. (12pi)/(13)=

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  20. cos. (3pi)/(19) + cos . (7pi)/(19) + cos. (12pi)/(19) + cos. (16pi)/(1...

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