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# SOHCAHTOA with Collinear Points

ACTMAT-XVJWLE

In the figure below, points A, B and C are collinear. If $AC = 40$ inches, then which of the following equations does not hold true?

A

$x = \cfrac{20}{\cos 50°}$

B

$y = 20 \tan 50°$

C

$x = \cfrac{20}{\cot 50}$

D

$y = x \sin 50°$

E

$x = 20 \sec 50°$