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If tantheta =-4/3," then " sintheta is...

If `tantheta =-4/3," then " sintheta` is

A

`-4/5` but not `4/5`

B

`-4/5` or `4/5`

C

`4/5` but not `5/4`

D

`4/5` and `5/4` both

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-TRIGNOMETRIC FUNCTIONS -Assignment section-A (Objective Type Questions (One option is correct))
  1. If sintheta+cosectheta=2, then "sin"^(2)theta+"cosec"^(2)theta is equa...

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  2. If tantheta=3 and theta lies in third quadrant then sintheta=

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  3. If tantheta =-4/3," then " sintheta is

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  4. If A lies in the second quadrant and 3tanA +4 =0, then the value of 2c...

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  5. The circular wire of diameter 10 cm is cut and placed along the circum...

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  6. The value of (secA + tanA-1) (sec A -tanA+1) -2tanA is equal to

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  7. If costheta =-1/2 and 0 lt theta lt 360^(@), then the value of theta a...

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  8. sin10 5^(@)+cos10 5^(@)=

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  9. If sintheta(1)+sintheta(2)+sintheta(3)=3, then cos theta(1)+cos theta(...

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  10. The value of cos 10^@ - sin 10^@ is

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  11. Calculate the value of (i) sin 15^(@) " "(ii) cos 15^(@)" "(...

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  12. If tantheta=1/(2) and tanphi=1/(3), then the value of (theta+phi) is

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  13. The value of cot((pi)/(4)+theta)cot((pi)/(4)-theta) is

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  14. The value of sin50^(@) - sin70^(@)+sin10^(@) is equal to

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  15. The value of "sin"(45^(@)+ theta)-"cos(45^(@) - theta) is (i) 2costh...

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  16. If cos(alpha+beta)=(4)/(5) and sin(alpha-beta)=(5)/(13) , where alpha ...

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  17. The value of (1-tan^(2)15^(@))/(1+tan^(2)15^(@)) is

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  18. If (1+tantheta)(1+tanphi)=2, then theta + phi=

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  19. Find the value of cos 12^(@)+cos 84^(@)+cos 156^(@)+cos 132^(@)

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  20. The value of sin 50^(0)-sin 70^0+sin 10^0 is equal to a. adot\ 0 b. 1 ...

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