Value of is-

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Question

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Official Sr. Teacher Gr II NON-TSP MATHEMATICS (Held on :29 Oct 2018)

Answer 1

Hint:

To Find , the limits of outermost integration is constant. so first integrate w.r.to x

When integrating with respect to x, we must think of y as a constant.

We know that:

and

Calculation:

Consider, I =

To Find:

The limits of outermost integration are constant so first integrate w.r.t x

When integrating with respect to x, we must think of y as a constant.

We know that:

and

= 2 [cos y]₀^π/2

= 2 [cos 90° - cos 0°]

= -2

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