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{25 POINTS] The point (3, -4) is on the terminal side of an angle Ø. What is cos Ø? A.) - 3/5 B.) 3/5 C.) - 3/4 D.) 3/4 E.) 3

{25 POINTS] The point (3, -4) is on the terminal side of an angle Ø. What is cos Ø? A.) - 3/5 B.) 3/5 C.) - 3/4 D.) 3/4 E.) 3
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{25 POINTS]

The point (3, -4) is on the terminal side of an angle Ø. What is cos Ø?

A.) - 3/5
B.) 3/5
C.) - 3/4
D.) 3/4
E.) 3

User Ajaxx
by
7.4k points

1 Answer

3 votes
The point (3, -4) is on the terminal side of the Ø implies that the hypotenuse has a length of 5, by the pythagorean theorem.
Now recall cosØ = x / r where r is the hypotenuse.
So cosØ = 3 / 5.
User Mr Rebel
by
7.9k points
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