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Zepler [3.9K]
3 years ago
9

Sin 0 = -3/5 and cos 0 > 0. Identify the quadrant of the terminal side of O and find cos 0.

Mathematics
1 answer:
NARA [144]3 years ago
3 0

Answer:

See below.

Step-by-step explanation:

Cos O is positive in the first and 4th quadrants and sin O is negative in the 3rd and 4th quadrants.

So the answer is Quadrant 4.

cos^2 O = 1 - sin^2 O

= 1 - (-3/5)^2

= 16/25

So  cos O  is +√(16/25)

= 4/5.

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