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Can someone help me please

Can someone help me please
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Can someone help me please

Can someone help me please-example-1
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User Dan Martin
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a) \: \cos(39°) = (x)/(7) \Leftrightarrow x = 7\cos(39°) \approx5.44 \\ b) \: \sin(46°) = (8)/(x) \Leftrightarrow x = (8)/(\sin(46°)) \approx11.12

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User Iamburak
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