Use basic identities to simplify the expression.
cos θ - cos θ sin2θ
2 answers:
Cos Ф - cos Ф.sin² Ф
sin² Ф = 1 - cos² Ф
cos Ф - cos Ф( 1-cos² Ф) = cos Ф - cos Ф - cos³ Ф = cos³ Ф
cos Ф - cos Ф.sin² Ф = cos³ Ф
Answer:
answer is cos ^3 0
Step-by-step explanation:
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