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

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asked May 10, 2018 83.0k views

1 vote

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? I'm so confused. I've been on this problem-example-1

Mathematics
high-school

Ptk asked

by Ptk

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$\cos(A-B)=\cos A\cdot\cos B+\sin A\cdot\sin B=(35)/(37)\cdot(21)/(29)+(12)/(37)\cdot(20)/(29)=\\\\\\=(735)/(1073)+(240)/(1073)=(975)/(1073)\approx0.91$

Roperzh answered May 15, 2018

by Roperzh

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