How do you solve #19?

asked Oct 16, 2018 214k views

2 votes

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Recall that secΘ = 1/cosΘ

∴ LHS =
((1)/(cosx))/((sinx)/(cosx))

$= (1)/(sinx) \\eq sinx$

Thus, we've disproved by providing a proof.

Wes H answered Oct 20, 2018

by Wes H

8.3k points

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