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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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Nov 22, 2020
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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
Mathematics
high-school
Aaroninus
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Marcelo Villa
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