6 Find the EXACT value of cos(A - B) if sin A = - 7 angles from standard position. cos (A - B) = and sin B = 3 . Assume A and B are Quadrant I 8 —

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter77: Machining Compound-angular Surfaces
Section: Chapter Questions
Problem 5A
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6
Find the EXACT value of cos(A - B) if sin A = -
7
angles from standard position.
cos (A - B) =
and sin B =
3
. Assume A and B are Quadrant I
8
—
Transcribed Image Text:6 Find the EXACT value of cos(A - B) if sin A = - 7 angles from standard position. cos (A - B) = and sin B = 3 . Assume A and B are Quadrant I 8 —
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