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Find (dy)/(dx), when If y = (cos x + s...

Find `(dy)/(dx)`, when
If `y = (cos x + sinx)/(cos x - sinx)`, show that `(dy)/(dx) = sec^(2) (x + (pi)/(4))`.

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To find \(\frac{dy}{dx}\) for the function \[ y = \frac{\cos x + \sin x}{\cos x - \sin x}, \] we will use the quotient rule of differentiation. The quotient rule states that if you have a function \(y = \frac{u}{v}\), then ...
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