Really stuck with this problem, I need help with this asap.
To find cos(a-B), I'm supposed to use:
tan a = 4/3, with a in quadrant III
cos B = 12/13, with B in quadrant IV
2026-05-16 03:23:28.1778901808
Finding cos(a-B) using tan a = 4/3 in quad III and cos B = 12/13 in quad IV
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I have shown the relevent identities . I hope this helps answer your question.