Mathematics, 13.01.2021 04:00 2019reynolds

Evaluate the expression given cos a=4/5 for 0<a<pi/2 and sin b=-15/17 for 3pi/2<b<2pi. SHOW WORK 1.sin(a+b)
answer must equal -36/85

2.cos(a-b)
answer must equal -13/85

3.tan(a+b)
answer must equal -36/77

4.tan(a-b)
answer must equal -84/13

Evaluate the expression given cos a=4/5 for 0<a<pi/2 and sin b=-15/17 for 3pi/2<b<2pi.

Answers: 3

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More questions: Mathematics Another questions

Evaluate the expression given cos a=4/5 for 0<a<pi/2 and sin b=-15/17 for 3pi/2<b<2pi. SHOW WORK 1.sin(a+b)answer must equal -36/852.cos(a-b)answer must equal -13/853.tan(a+b)answer must equal -36/774.tan(a-b)answer must equal -84/13

Answers

Another question on Mathematics

Evaluate the expression given cos a=4/5 for 0<a<pi/2 and sin b=-15/17 for 3pi/2<b<2pi. SHOW WORK 1.sin(a+b)
answer must equal -36/85

2.cos(a-b)
answer must equal -13/85

3.tan(a+b)
answer must equal -36/77

4.tan(a-b)
answer must equal -84/13