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5sin70=7sinb

 Feb 4, 2016
 #1
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5sin70=7sinB    divide both sides by 7

 

(5/7)sin70  = sinB    take the sine inverse to find B

 

sin-1 [ (5/7)sin70]  = B  = about 42.16°

 

 

cool cool cool

 Feb 4, 2016

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