Question

1/cosC =? (the answer will be in Sec)​

Answer 1

Answer:

1/cosC =secC

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Answer 2

Answer:

$to \: prove \\ \frac{1}{ \cos( \alpha ) } = \sec( \alpha ) \\ \\ \: lhs \\ cos (\alpha ) = \frac{b}{h} \\ so \\ \frac{1}{ \cos( \alpha ) } = \frac{1}{ \frac{b}{h} } = \frac{h}{b} \\ and \: \: \\ \sec( \alpha ) = \frac{h}{b} \: \\ so \: lhs = rhs$

Hope it helps you.

Cos is the reciprocal of sec.