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Find the value of cot""(pi)/20.cot""(3pi...

Find the value of `cot""(pi)/20.cot""(3pi)/20.cot""(5pi)/20.cot""(7pi)/20.cot""(9pi)/20`

A

`-1`

B

`1//2`

C

0

D

1

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CHAMPION PUBLICATION-2011 TIER-II PAPER(23)-EXERCISE
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  2. If sin^2 alpha+ sin^2 beta=2, then the value of (cos frac (alpha+beta)...

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  3. Find the value of cot""(pi)/20.cot""(3pi)/20.cot""(5pi)/20.cot""(7pi)/...

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  4. If sin theta+cos theta= 17//13, 0 < theta <90^@, then the value of sin...

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  5. If tantheta.tan2theta=1, then find the value of sin^(2)2theta+tan^(2)2...

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  7. The following line diagram represents the yearly sales figure of a com...

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  8. The following line diagram represents the yearly sales figure of a com...

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  13. The following table shows the number of students of 7 college particip...

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  14. The following table shows the number of students of 7 college particip...

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  15. The following table shows the number of students of 7 college particip...

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