Given: SIn(A)= 4/5 ,pi/2 < A< pi and sin(B)= -2square5/5, pi < B < 3pi/2 What is the value of cos(A-B) A. -2square5/25 B. -square5/5 C. 2square5/5 D. 11square5/25

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asked Apr 21, 2021 129k views

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Given: SIn(A)= 4/5 ,pi/2 < A< pi and sin(B)= -2square5/5, pi < B < 3pi/2

What is the value of cos(A-B)

A. -2square5/25
B. -square5/5
C. 2square5/5
D. 11square5/25

Mathematics
high-school

Mrwienerdog asked

by Mrwienerdog

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1 Answer

2 votes

I think is The letter A

Krishna Srihari answered Apr 27, 2021

by Krishna Srihari

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