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# $$\cos(x) \times \tan(x) = \sin(x)$$?

$$\cos(x) \times \tan(x) = \sin(x)$$

Proof:

$$\sin(x) = \frac{oppisite}{hypoteneuse}$$

$$\cos(x) = \frac{adjacent}{hypoteneuse}$$

$$\tan(x) = \frac{oppisite}{adjacent}$$

$$\cos(x) \times \tan(x) = \frac{adjacent}{hypoteneuse} \times \frac{oppisite}{adjacent}$$

$$\frac{adjacent}{hypoteneuse} \times \frac{oppisite}{adjacent} = \frac{oppisite}{hypoteneuse}$$.

$$\frac{oppisite}{hypoteneuse} = \sin(x)$$

Note by Ron Lauterbach
2 weeks, 6 days ago

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What are you considering? Do you mean ''Prove that $$\cos(x) \times \tan(x) = \sin(x)$$''?

- 1 day, 19 hours ago

Ignore this note. =\ I don’t know what I made it for...

- 1 day, 19 hours ago

If you don't like the note, you can always delete it. :)

- 1 day, 19 hours ago

=/

- 1 day, 17 hours ago