Find ( frac{dy}{dx} ), if x=tan 2 and y=cos 2 +sin2 .

1.	Find ( frac{dy}{dx} ), if x=tan 2 and y=cos 2 +sin² .
A.	( frac{tan^2 u20612 ,sin u20612 }{2} )
B.	( frac{3 tan^2 u20612 sin u20612 }{2} )
C.	0
D.	( frac{tan^2 u20612 sin u20612 }{2} )
Answer» B. ( frac{3 tan^2 u20612 sin u20612 }{2} )

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