Inactive Tutor answered • 03/22/21
Tutor
New to Wyzant
Kenadi L.
asked • 03/22/21what is the value of cos(a-b)
if cos A= 60/61 and tan B= 12/35. What is the value of cos(a-b)?
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2 Answers By Expert Tutors
Inactive Tutor answered • 03/22/21
Tutor
New to Wyzant
Determine value of sin A,
sin2 A = 1 - cos2 A
Then substitute values into appropriate formula.
Kenadi L.
I'm working on angle sum and difference
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03/22/21
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Kenadi L.
For positive acute angles A and B, it is known that cosA=60/61 and tanB=12/35. Find the value of cos(A−B) in simplest form.03/22/21