1.

Area under the curve \[y=\sin 2x+\cos 2x\] between \[x=0\] and \[x=\frac{\pi }{4},\] is      [AI CBSE 1979]

A.   2 sq. unit 
B.   1 sq. unit
C.   3 sq. unit 
D.   4 sq. unit
Answer» C.   3 sq. unit 


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