Yugeyum1 Yugeyum1

19-05-2017
Mathematics

contestada

Can someone please please please help? I'm so confused. I've been on this problem for an hour.

Can someone please please please help Im so confused Ive been on this problem for an hour class=

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WojtekR WojtekR

19-05-2017

[tex]\cos(A-B)=\cos A\cdot\cos B+\sin A\cdot\sin B=\dfrac{35}{37}\cdot\dfrac{21}{29}+\dfrac{12}{37}\cdot\dfrac{20}{29}=\\\\\\=\dfrac{735}{1073}+\dfrac{240}{1073}=\dfrac{975}{1073}\approx0.91[/tex]

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