Question
Asked Oct 20, 2019
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with B in QI, find tan(A B) and cot(A + B)
4
If sin A= 5/5 with A in QI and tan B =
tan(A B)
cot(AB)
In what quadrant does A B terminate?
quadrant I
quadrant II
quadrant III
quadrant IV
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with B in QI, find tan(A B) and cot(A + B) 4 If sin A= 5/5 with A in QI and tan B = tan(A B) cot(AB) In what quadrant does A B terminate? quadrant I quadrant II quadrant III quadrant IV

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Expert Answer

Step 1

Given that,

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sin A with A in Q1 5 5 cos A 1-sin2 A 5 (+ve, QI) 5 5 25 20 25 215 5 Il

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Step 2

Thus, the tan A is calculated as follows.

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sin A tan A Cos A 5 5 215 5 1 2

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Step 3

The tan (A + B) is calculat...

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tan A tan B tan(AB 1-tan A tan B 1 3 2 1 4 3 1 - 2 4 3 1 8 5 5 8 =_X 4 5 2 5

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Math

Trigonometry