Mathematics, 19.04.2021 02:20, chuchi24

HELP PLSSS! WILL GIVE BRAINLIEST! Given that:
- sin(A)=3/7
- cos(B) = -2/5
- and that both A and B are in quadrant II

Find cos(A-B). Simplify it to a single value, leaving it in the form of a rational number.

Answers: 3

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HELP PLSSS! WILL GIVE BRAINLIEST! Given that:
- sin(A)=3/7
- cos(B) = -2/5
- and...