Solve each of the following initial value problem: `(x-siny)dy+(tany)dx=0,\ y(0)=0`

Explanation

The given diff. equation can be written as

``
`frac{d x}{d y}+(cot y) x=cos y`

``
This is linear differential equation.

``
` { I.F. }=e^{int cot y d y}=e^{log sin y}=sin y`

``
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