Which expression is equivalent to cos(4x)?
2(2cos2(x) β 1)2 β 1
2cos2(2x) β 1
2cos2(x)...
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Mathematics, 23.10.2020 20:10, kamkamkab
Which expression is equivalent to cos(4x)?
2(2cos2(x) β 1)2 β 1
2cos2(2x) β 1
2cos2(x) β 4
4cos2(x)
![answer](/tpl/images/cats/otvet.png)
Answers: 1
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