Yugeyum1
Yugeyum1 Yugeyum1
  • 19-05-2017
  • Mathematics
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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 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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