Question

1 - cos 90 ÷ 1 + cos 90​

Answer 1

Here is your solution :-

First of all, Cos90 = 0

NOW,

$\frac{1 - \cos(90) }{1 + \cos(90) } \\ \\ putting \: the \: value \\ \\ = \frac{1 - 0}{1 + 0} \\ \\ = \frac{1}{1} \\ \\ = 1$

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