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If tan alpha=2, then the value of (cosec...

If `tan alpha=2`, then the value of `(cosec^2 alpha-sec^2 alpha)/(cosec^2 alpha+sec^2 alpha)` is
यदि `tan alpha=2` है, तो `(cosec^2 alpha-sec^2 alpha)/(cosec^2 alpha+sec^2 alpha)` का मान ज्ञात करें।

A

A)`-3/5`

B

B)`1/2`

C

C)`-15/9`

D

D)`3/5`

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CHAMPION PUBLICATION-2014 TIER-II PAPER(19)-EXERCISE
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  2. If x cos^2 30^@. sin 60^@=(tan^2 45^@. sec 60^@)/(cosec 60^@) then the...

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  3. If tan alpha=2, then the value of (cosec^2 alpha-sec^2 alpha)/(cosec^2...

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  4. If sin(theta+30^@)=3/sqrt12 then the value of cos^2 theta is यदि si...

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  5. In a right angled triangle PQR, PR is the hypotenuse of length 20 cm, ...

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  6. If 0lethetale90^@ and 4 cos^2 theta-4 sqrt3 cos theta+3=0, then the va...

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  7. If y = 3:2, then value of (x + y )/(x - y) is :

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  8. If 50% of x=30% of y then x : y is :

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  9. 1/(sqrt3+sqrt4)+1/(sqrt4+sqrt5)+1/(sqrt5+sqrt6)+1/(sqrt6+sqrt7)+1/(sqr...

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  11. A General of Army wants to form a square from 36562 armies. After arra...

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  12. The square root of (2 + sqrt(3))/(2) is

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  13. The value of sqrt(72+sqrt(72+sqrt(72+))) is

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  14. In a farm there are cows and hens. If heads are counted they are 180, ...

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  15. The number which can be written in the form of n (n+1) (n+ 2), where n...

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  16. The value of (11111)^(2) is

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  17. Two workers A and B are engaged to do a piece of work. A working alone...

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  18. If a man earns ₹ 2,000 for his first 50 hours of work in a week and t...

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  19. If x can finish a job in 4 hours and y can finish the same job in 8 ho...

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