Mathematics

Mathematics, 31.08.2019 06:30, kaitlynmoore42

Given that 0 ≤ a < 2π, which of the following gives all solutions to the equation 2cos(2a) + 4cos a - 6 = 0
a. a= 0
b. a = π
c. a = 0 and π
d. a = 0 and 2π

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Given that 0 ≤ a < 2π, which of the following gives all solutions to the equation 2cos(2a) + 4co...

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