Bentuk cos (2 x+(pi)/(3)) . cos 2 x akan senilai dengan...

Saluran Edukasion 2024-01-24T03:19:08

Bentuk cos (2 x+(pi)/(3)) . cos 2 x akan senilai dengan... a. cos (4 x+(pi)/(3))+1 b. (1)/(2) cos (4 x+(pi)/(3))+(1)/(2) c. (1)/(2) cos (4 x+(pi)/(3))+(1)/(4) d. (1)/(2) cos (4 x+(pi)/(3))-(1)/(2) e. (1)/(2) cos (4 x+(pi)/(3))-(1)/(4)
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