My Math Forum Pretty simple problem

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 April 12th, 2014, 09:39 PM #1 Newbie   Joined: Apr 2014 From: canada Posts: 1 Thanks: 0 Pretty simple problem Hello! Pretty simple problem I guess, just can't get my head around it, havent done math in a while so any help would be greatly appreciated! 64²/16² + 4²/B² = 1 so I guess 4 + 4/b = 1 it's from there I'm unsure how to solve the rest!
 April 13th, 2014, 01:25 AM #2 Senior Member   Joined: Apr 2014 From: UK Posts: 914 Thanks: 331 Your guess is incorrect. Try simplifying the numbers first, you should get to: 16 + 16/b² = 1 Then move the 16: 16/b² = -15 Then multiply by b² 16 = -15b² Then divide by -15 b² = -16/15 Now root it b = 4i/root(15)

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