1.

IfA= cos^(2) 76^(@) + cos^2 16^(@) - cos 76^(@) cos 16^(@) , B= cos^(2)( 45^(@) - alpha ) + cos^(2)(15^(@) + alpha ) - cos^(2)(15^(@)- alpha ) , C= ( cos ( 45^(@)+ A) cos (45^(@) - A))/( sin (120^(@) + A)-sin(120^(@) - A)) then the ascending order is

Answer»

C,A,B
B,A,C
A,C,B
A,B,C

Answer :B


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