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A=cos20^(@) - sin 20^(@) ,B=cos100^(@) +...

`A=cos20^(@) - sin 20^(@) ,B=cos100^(@) + sin100^(@) , C= cos""(5pi)/6+ sin""(2pi)/3 ` then the ascending order is

A

C,A,B

B

A,B,C

C

B,C,A

D

C,B,A

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The correct Answer is:
A
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