Given sin(A)=2/5 and Quadrant of A, Find 5 Trig Function Values

This video explains how to find the 5 remaining trigonometric function values given the sine function value and the quadrant of the angle.

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Given tan(A)=-5/7 and sin(A)>0, Find sin(A) and cos(A)

This video explains how to find sine and cosine function values given the tangent function value and that sine is positive.