Find the magnitude of angle A if cos A = 0.5
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The answer is -485.
To find this we first need to get rid of the 5 in the denominator.
100 =
So we multiply each side by 5.
500 = 15 - x
Now we need to get rid of the 15. So we subtract 15 from both sides.
485 = -x
Then since our x is negative, we need to divide by -1.
-485 = x
To find this we first need to get rid of the 5 in the denominator.
100 =
So we multiply each side by 5.
500 = 15 - x
Now we need to get rid of the 15. So we subtract 15 from both sides.
485 = -x
Then since our x is negative, we need to divide by -1.
-485 = x