cot(pi/20).cot((3pi)/20)cot((5pi)/20)cot...

`cot(pi/20).cot((3pi)/20)cot((5pi)/20)cot((7pi)/20)cot((9pi)/20)=....`

A

-1

B

0

C

1

D

none of these

Verified by Experts

The correct Answer is:

C

cot(pi/20).cot((3pi)/20)cot((5pi)/20)cot((7pi)/20)cot((9pi)/20)=....
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cot((pi)/(20))cot((3 pi)/(20))cot((5 pi)/(20))cot((7 pi)/(20))cot((9 p...
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cot(pi/20).cot((3pi)/20)cot((5pi)/20)cot((7pi)/20)cot((9pi)/20)=....
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Prove that "cot"(pi)/(8)"cot"(3pi)/(8)"cot"(5pi)/(8)"cot"(7pi)/(8)=1.
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Show that cot.(pi)/(20). cot .(3pi)/(20). cot.(5pi)/(20). cot .(7pi)...
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सिद्ध कीजिए की: cot 10^(@) cot 20^(@) cot 60^(@) cot 70^(@) cot 80^(...
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tan ""(pi)/(2) cot""( 3pi)/( 20 )tan ""( 5pi )/( 20 ) tan ""(7pi)/( 20...
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Find the value of cot""(pi)/20.cot""(3pi)/20.cot""(5pi)/20.cot""(7pi)/...
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cot. (pi)/(20) cot. (3pi)/(20) cot. (5pi)/(20) cot. (7pi)/(20) cot. (9...
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