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cos (pi/7)* cos (2pi/7)* cos (10pi/7)- s...

`cos (pi/7)* cos (2pi/7)* cos (10pi/7)- sin (pi/14)*sin (3pi/14)*sin (5pi/14)` Find value.

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cos((pi)/(7))*cos(2(pi)/(7))*cos(10(pi)/(7))-sin((pi)/(14))*sin(3( pi)/(14))*sin(5(pi)/(14)) Find value.

Prove that sin (pi/14)sin((3pi)/14)sin((5pi)/14)=1/8

The value of sin(pi/14)sin((3pi)/14)sin((5pi)/14) is

The value of sin(pi/14)sin((3pi)/14)sin((5pi)/14) is

The value of sin(pi/14)sin((3pi)/14)sin((5pi)/14) is

Prove that sin pi/14* sin 3pi/14 * sin 5pi/14 = 1/8 .

cos(pi/14) + cos ((3pi)/14) + cos((5pi)/14) =