A function \[y=f(x)\] satisfies the differential equation \[\frac{dy}{dx}-y=\cos x-\sin x\] with initial condition that y is bounded when \[x\to \infty \]. The area enclosed by \[y=f(x),y=cos\,\,x\] and the y-axis is

A function \[y=f(x)\] satisfies the differential equation \[\frac{dy}{

1.	A function \[y=f(x)\] satisfies the differential equation \[\frac{dy}{dx}-y=\cos x-\sin x\] with initial condition that y is bounded when \[x\to \infty \]. The area enclosed by \[y=f(x),y=cos\,\,x\] and the y-axis is
A.	\[\sqrt{2}-1\]
B.	\[\sqrt{2}\]
C.	1
D.	\[\frac{1}{\sqrt{2}}\]
Answer» B. \[\sqrt{2}\]

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A function \[y=f(x)\] satisfies the differential equation \[\frac{dy}{dx}-y=\cos x-\sin x\] with initial condition that y is bounded when \[x\to \infty \]. The area enclosed by \[y=f(x),y=cos\,\,x\] and the y-axis is

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