Verify each trigonometric equation by substituting identities to match the right hand side of the equation to the left hand side of the equation 4. sine of x divided by one minus cosine of x + sine of x divided by one minus cosine of x = 2 csc x

(sin x)/(1-cosx) + sinx/(1-cosx) =

2 csc x

We have like denominators.

Just add the numerators.

(2 sin x)/(1 - cos x) = 2 csc x

[1/(1 - cos x)](2 sin x) = 2 csc x

Take it from here.

squares, rhombus, rectangles

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take good notes.

do your homework.

use mnemonics and other tricks.

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