Given: Sine (A) = four-fifths, StartFraction pi Over 2 EndFraction < A < Pi and Sine (B) = StartFraction negative 2 StartR

Question

3 years ago

11

Given: Sine (A) = four-fifths, StartFraction pi Over 2 EndFraction < A < Pi and Sine (B) = StartFraction negative 2 StartR

oot 5 EndRoot Over 5 EndFraction, pi, Pi < B < StartFraction 3 pi Over 2 EndFraction
What is the value of cos(A – B)?

Negative StartFraction 2 StartRoot 5 EndRoot Over 25 EndFraction
Negative StartFraction StartRoot 5 EndRoot Over 5 EndFraction
StartFraction 2 StartRoot 5 EndRoot Over 5 EndFraction
StartFraction 11 StartRoot 5 EndRoot Over 25 EndFraction

Mathematics

2 answers:

ELEN [110] · Answer 1 · 2022-05-09T19:01:39+03:00

ELEN [110]3 years ago

8 0

Answer:

D

Step-by-step explanation:

Did test(edge 2020)

Marianna [84] · Answer 2 · 2022-05-09T21:31:02+03:00

Marianna [84]3 years ago

4 0

Answer:

d

Step-by-step explanation:

edge 2020