Fa in the blank tet e bo the tank Let be angle Solutionpoint

Fa in the blank tet e bo the tank. Let be angle

Solution

point on circle ( x, y) ; radius of circle = sqrt(x^2 +y^2)

sin(theta) = height/hypotenuse = y/r = y/sqrt(x^2 +y^2)

cos(theta) = base/hypotenuse = x/r = x/sqrt(x^2 +y^2)

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