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Mathematics, 12.06.2020 16:57 Redbox6670

Let ein A=4/9, where 90<_A<_180, by considering the unit circle determine the exact value of cos(A). Please help with both 5 and 6!!!


Let ein A=4/9, where 90<_A<_180, by considering the unit circle determine the exact value of

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Let ein A=4/9, where 90<_A<_180, by considering the unit circle determine the exact value of c...
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