If x = et cost and y = et sint, then what is \(\dfrac{dx}{dy}\) at t = 0 equal to?

If x = et cost and y = et sint, then what is \(\dfrac{dx}{dy}\) at t

1.	If x = et cost and y = et sint, then what is \(\dfrac{dx}{dy}\) at t = 0 equal to?
A.	0
B.	1
C.	2e
D.	-1
Answer» C. 2e

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If x = et cost and y = et sint, then what is \(\dfrac{dx}{dy}\) at t = 0 equal to?

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