3 years ago

Given that cos theta = -12/13 and theta is in the second quadrant, find this function. sin theta=

1 answer:

3 0

5/13

The x value is negative (second quadrant). 13 is the hypotenuse. So the missing side is 13^2 = (-12)^2 + y^2.

Sin theta is the opposite (5) over hypotenuse (13).

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