Area under the curveHard
Question
A function y = f(x) satisfies the differential equation, 
- y = cos x - sin x, with initial condition that y is bounded when x → ∞. The area enclosed by y = f (x), y = cos x and the y-axis in the 1st quadrant is -
- y = cos x - sin x, with initial condition that y is bounded when x → ∞. The area enclosed by y = f (x), y = cos x and the y-axis in the 1st quadrant is -Options
A.√2 - 1
B.√2
C.1
D.
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