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((cottheta)/(cottheta-cot3theta)+(tanthe...

`((cottheta)/(cottheta-cot3theta)+(tantheta)/(tantheta-tan3theta))=?`

A

1

B

`-1`

C

2

D

0

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The correct Answer is:
A
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ADVANCED MATHS BY ABHINAY MATHS ENGLISH-TRIGONOMETRY -EXERCISES (Multiple Choice Questions)
  1. If cotalpha=(15)/(8), then ((2+2sinalpha)(1-sinalpha))/((1+cosalpha)(2...

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  2. If x=asinalphaandy=bcosalpha, then b^(2)x^(2)+a^(2)y^(2)=?

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  3. ((cottheta)/(cottheta-cot3theta)+(tantheta)/(tantheta-tan3theta))=?

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  4. If tantheta-cottheta=(119)/(60)" for "0^(@)ltthetaltpi//2, then the va...

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  5. If x=2tanalpha,y=2cotalpha, then 16((1)/(4+x^(2))+(1)/(4+y^(2)))=?

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  6. cos^(2)""(pi)/(16)+cos^(2)""(3pi)/(16)+cos^(2)""(5pi)/(16)+cos^(2)""(7...

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  7. cos^(2)(A-B)+cos^(2)B-2cos(A-B).cosA.cosB=?

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  8. (cot^(2)""(theta)/(2)-tan^(2)""(theta)/(2))/(cottheta.cosectheta)=?

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  9. Prove that cos^(2)theta + cos^(2)(alpha + theta) – 2cos alpha *cos th...

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  10. If sin theta =3 sin ( theta + 2 alpha), then the value of tan (theta...

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  11. If tanx+secx=2cot(90^(@)+x), then cosecx=?

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  12. If (1)/(cosectheta+cottheta)-cosectheta-tantheta=3ksecthetacosectheta,...

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  13. If tantheta=(11)/(13), then find (5sintheta-3costheta)/(5sintheta+2cos...

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  14. If 7sin^(2)theta+3cos^(2)theta=4, then value of tantheta.

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  15. (1+cottheta-cosectheta)(1+tantheta+sectheta)=?

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  16. (cosec-sinx)(secx-cosx)(tanx+cotx)=?

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  17. ((cottheta)/(cottheta-cot3theta)+(tantheta)/(tantheta-tan3theta))=?

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  18. "(cotA+cosecA-1)"/"(cotA-cosecA+1)"=?

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  19. (sintheta+sin2theta)/(1+costheta+cos2theta)=?

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  20. For which values of x between 0and2pi, then 2cosec2x cot x-cot^(2)x=1 ...

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