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How do you solve #19?
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2 votes
How do you solve #19?

How do you solve #19?-example-1
User Wouter Bouwman
by
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1 Answer

5 votes
Recall that secΘ = 1/cosΘ

∴ LHS =
((1)/(cosx))/((sinx)/(cosx))

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

Thus, we've disproved by providing a proof.
User Wes H
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