The function f(x) = x sinx satisfies the following equation f''(x) + f(x) + t cosx = 0. The value of t is

The function f(x) = x sinx satisfies the following equation f''(x) + f

1.	The function f(x) = x sinx satisfies the following equation f''(x) + f(x) + t cosx = 0. The value of t is
A.	-1
B.	-2
C.	1
D.	2
Answer» C. 1

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The function f(x) = x sinx satisfies the following equation f''(x) + f(x) + t cosx = 0. The value of t is

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