Find the equations of the tangent and the normal to the given curve at the indicated point : `y = cot^(2) x - 2 cot x + 2 " at " x = (pi)/(4)`
Find the equations of the tangent and the normal to the given curve at the indicated point :
`y = cot^(2) x - 2 cot x + 2 " at " x = (pi)/(4)`
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