What is the value of (x + y)2y” if x = et sint and y = et cost? – McqOptions

MCQOPTIONS

1.	What is the value of (x + y)2y” if x = et sint and y = et cost?
A.	x/2(y’ + y)
B.	x/2(y’ – y)
C.	2(xy’ + y)
D.	2(xy’ – y)
Answer» E.

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