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prove 1-(sin^2(x))/(1+cos(x))=cos(x)

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prove 1−sin²(x)1+cos(x) =cos(x)

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True

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1−sin²(x)1+cos(x) =cos(x)

Manipulating left side

1−sin²(x)1+cos(x)

Simplify 1−sin²(x)1+cos(x) : 1+cos(x)−sin²(x)1+cos(x)

=1+cos(x)−sin²(x)1+cos(x)

Rewrite using trig identities

=cos(x)

We showed that the two sides could take the same form

⇒ True

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+▭▭	>	4	5	6	×	☐☐☐
×▭▭	(	1	2	3	−	`x`
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prove 1-(sin^2(x))/(1+cos(x))=cos(x)

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