f(x, y) = sin(x) + cos(y) + xy2; x = cos(t); y = sin(t) Find df‚Äö – McqOptions

MCQOPTIONS

1.	f(x, y) = sin(x) + cos(y) + xy²; x = cos(t); y = sin(t) Find ^df‚Äö√Ñ√∂‚àö√ñ‚àö√´_dt at t = ^{‚âà√¨‚àö√ë}‚Äö√Ñ√∂‚àö√ñ‚àö√´₂$
A.	2
B.	-2
C.	1
D.	0
Answer» C. 1

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