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Mathematics, 24.04.2021 03:40 alexmoy45p8yd7v

If sin a = -4/5 and sec B =5/3
for a third-quadrant angle a and a first-quadrant angle ß, find the following
(a)
sin(a + B)
(b)
tan(a + b)
(c) the quadrant containing a + B
O Quadrant I
O Quadrant II
O Quadrant III
O Quadrant IV

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If sin a = -4/5 and sec B =5/3
for a third-quadrant angle a and a first-quadrant angle ß, fi...
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