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never [62]
3 years ago
13

Given sin (-∅) = -1/4 and tan∅ = √15/15. What is the value of cos∅?

Mathematics
1 answer:
Ket [755]3 years ago
4 0
Cos (theta) would be equal to 15/-1!

The reason is because the inverse of sin is equal to the hypotenuse over the opposite angle, meaning the hypotenuse would be -1. Tan is equal to the opposite over the adjacent angle, meaning the adjacent angle equals 15. Cos is equal to the adjacent over the hypotenuse, making cos (theta)= 15/-1!
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