Question:
(1) Multiply. (1 + cos(t))(1 − cos(t))= __________________
Last updated: 8/11/2022
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(1) Multiply. (1 + cos(t))(1 − cos(t))= __________________ (2) Simplify further using identity sin² (t) + cos² (t) - 1 (1 + cos(t)) (1 - cos(t))= ___________