Evaluate the double angle of sine using a right triangle

The video tutorial covers the constraint on Theta, focusing on its range between π/2 and π. It explains how this constraint affects the placement of a triangle in a specific quadrant. The tutorial then uses the Pythagorean theorem to find the hypotenuse of the triangle. Finally, it demonstrates how to evaluate the sine of two Theta using trigonometric identities, providing a step-by-step calculation of sine and cosine values based on the triangle's properties.

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