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Vikentia [17]
3 years ago
8

If sin θ=4/5 and 90°<θ<180°, what is cos θ?

Mathematics
1 answer:
34kurt3 years ago
7 0

Answer:

Cos ∅ = 3/5

BUT COSINE IS NEGATIVE IN THE SECOND QUADRANT.

Thus cos∅= -3/5

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