# trig

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Consider the angle in standard position whose measure is radians. The terminal side of this angle is in the third quadrant and lies on the line given by y=10x. Find sin and cos.

• trig -

The nice thing is that the equations for sin and cosine automatically take into the signs involved.

consider the point (-1,-10) in the third quadrant. h = sqrt(101) and is always positive

sin = y/h = -10/sqrt(101) = -0.995
cos = x/h = -1/sqrt(101) = -0.0995

• trig -

Sin therapists divide by 2

• trig -

Sin theta divide by 2

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