Show that cos(3x) = cos(x) - 4sin^2(x)cos(x) is an identity.
Which identities or propert...
Mathematics, 25.04.2020 20:46 marykm03p3sd80
Show that cos(3x) = cos(x) - 4sin^2(x)cos(x) is an identity.
Which identities or properties were used?
Answers: 3
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