Statement-1: The vlaue of `cos20^(@)cos40^(@)cos60^(@)cos80^(@)is1/16.` Statement-2: for any `theta,` `cos thetacos(60^(@)-theta)cos(60^(@)+theta)=1/4
Statement-1: The vlaue of `cos20^(@)cos40^(@)cos60^(@)cos80^(@)is1/16.`
Statement-2: for any `theta,`
`cos thetacos(60^(@)-theta)cos(60^(@)+theta)=1/4cos3theta`
A. Statement-1 is True, Statement-2 is true, Statement-2 is a correct explanation for Statement -1.
B. Statement-1 is True, Statement-2 is True, Statement-2 is not a correct explanation for Statement-1.
C. Statement-1 is True, Statement-2 is False.
D. Statement-1 is False, Statement-2 is True.
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Correct Answer - A
Clearly, both the statements are true and statement-2 is a correct explanation for statement-1.
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