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13 February, 13:07

the angle theta is located in quadrant 1 and cos of theta is 3/8. what is the value of sin of theta?

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  1. 13 February, 13:28
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    Answer: sin of theta = (√55) / 8

    Step-by-step explanation:

    Cosine is the x-value divided by the hypotenuse. We now know that since cosine is 3/8, that the hypotenuse is 8. In order to find the third side of the triangle (which would be the v-value), we must use Pythagorean theorem. The third side is square root 55. Sine equals the y-value divides by the hypotenuse. We know both of those values, so Sine of theta = square root of 55 divided by 8.
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