Sketch a triangle given a trig angle then determine remaining trig functions of angle

The video tutorial explains how to evaluate trigonometric functions when given a cosine value not on the unit circle. It starts by drawing a triangle and using the Pythagorean theorem to find the missing side. The tutorial then calculates the sine, cosine, and tangent of the angle, followed by their reciprocal functions: cosecant, secant, and cotangent. The process includes rationalizing denominators where necessary.

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