Learn about different ways in which trigonometric identities, such as the Pythagorean identity and the angle addition identities, can be used to solve problems.
4441_Using_trig_angle_addition_identities_finding_side_lengths.html
4442_Using_trig_angle_addition_identities_manipulating_expressions.html
4440_Finding_trig_values_using_angle_addition_identities.html
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