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Mathematics, 30.04.2021 18:50 cordovatierra16

HELP ASAPPP!!! which of the following is a solution to 2cos^2x-cos x-1=0

HELPPPPP ASAPPP!!! which of the following is a solution to 2cos^2x-cos x-1=0

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HELP ASAPPP!!! which of the following is a solution to 2cos^2x-cos x-1=0
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