Math tutorial for using the sum of two angles formula for the tangent of 105 degrees

The video tutorial explains the tangent addition formula, demonstrating how to apply it by plugging in specific angle values. It covers the simplification of tangent values using known trigonometric identities and emphasizes the importance of understanding the unit circle. The tutorial concludes with a final simplification of the expression and a brief discussion on eliminating radicals from the denominator.

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