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(1-tan A)/(1+tan A)= (tan3^@ tan15^@ tan...

`(1-tan A)/(1+tan A)= (tan3^@ tan15^@ tan30^@ tan75^@ tan87^@)/(tan27^@ tan39^@ tan51^@ tan60^@ tan63^@)` ,then the value of cot A is:
`(1-tan A)/(1+tan A)= (tan3^@ tan15^@ tan30^@ tan75^@ tan87^@)/(tan27^@ tan39^@ tan51^@ tan60^@ tan63^@)` , फिर cot A का मान है:

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
D
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ADVANCED MATHS BY ABHINAY MATHS ENGLISH-TRIGONOMETRY -EXERCISES (Multiple Choice Questions)
  1. costheta(tantheta+2)(2tantheta+1)=?

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  2. cos""(pi)/(7)+cos""(2pi)/(7)+cos""(3pi)/(7)+cos""(4pi)/(7)+cos""(5pi)/...

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  3. (1-tan A)/(1+tan A)= (tan3^@ tan15^@ tan30^@ tan75^@ tan87^@)/(tan27^@...

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  4. If (1+sinx)/(cosx)+(cosx)/(1+sinx)=4, then find x.

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  5. If cosectheta-sintheta=mandsectheta-costheta=n, then (m^(2)n)^((2)/(3)...

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  6. If sinA+sinB=C,&cosA+cosB=D, then sin(A+B)=?

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  7. If sinA=(1)/(sqrt(10))andsinB=(1)/(sqrt(5)), where A and B are positiv...

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  8. cos^(2)48^(@)-sin^(2)12^(@)=?

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  9. sin((pi)/(10))sin((3pi)/(10))=?

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

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  11. tan((pi)/(4)+theta)-tan((pi)/(4)-theta)=?

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  12. cot((pi)/(4)+theta)cot((pi)/(4)-theta)=?

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  13. cos24^(@)+cos55^(@)+cos125^(@)+cos204^(@)+cos300^(@)=?

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  14. (2sinthetatantheta(1-tantheta)+2sinthetasec^(2)theta)/((1+tantheta)^(2...

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  15. If mtan(theta-30^(@))=ntan(theta+120^(@)), then (m+n)/(m-n)=?

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  16. cosA+cos(240^(@)+A)+cos(240^(@)-A)=?

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  17. 1+cos56^(@)+cos58^(@)-cos66^(@)=?

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  18. If A+B=225^(@), then (tanA)/(1-tanA).(tanB)/(1-tanB)=?

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  19. If tantheta=(xsinphi)/(1-xcosphi)&tanphi=(ysintheta)/(1-ycostheta), th...

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  20. If tanx=(b)/(a), then find the value of sqrt((a+b)/( a-b ))+sqrt((a-b)...

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