Given:


To find:
The exact value of cos(u-v) if both angles are in quadrant 3.
Solution:
In 3rd quadrant, cos and sin both trigonometric ratios are negative.
We have,


Now,




On further simplification, we get


Similarly,






Now,




Therefore, the value of cos (u-v) is 0.1872.
Answer:
The sign should be negative ( - )!
Step-by-step explanation:
-4 - 8 = -12
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Answer:
I cant see the image
Step-by-step explanation: