use the info given below to find cos(a+b) tan a= 3/4, with a in quadrant III...

Question

Question

use the info given below to find cos(a+b)

tan a= 3/4, with a in quadrant III

sin b= 15/17, with b in quadrant II

math trigonometry

Answer 1

Answer #1

tana = 3 in third qualsant 4 than cosa =.4 5 and sind = -3 3 anel - sinB = 15 17 77 4 15 Thana B (+513 -8 (II Quadranty & 17

Answer 2

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