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OpenStudy (anonymous):
Math help please Picture in comments Find cos x. –0.28 –0.18 0.18 0.28
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OpenStudy (anonymous):
OpenStudy (anonymous):
@Nnesha
OpenStudy (anonymous):
We can use this formula to solve the question \[\frac{ -c^2+a^2+b^2 }{ 2ab } = CosC\]
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