Mathematics, 01.01.2020 12:31 iisanchez27
Which expression is equivalent to cos(2α)cosα−sinα for all values of α for which cos(2α)cosα−sinα is defined?
select the correct answer below:
2
cosα+sinα
cot2α−2cos2α
2tanα1+tanα
2sinα1−tan2α
Answers: 3
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Which expression is equivalent to cos(2α)cosα−sinα for all values of α for which cos(2α)cosα−sinα is...
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