SOLUTION: if tan A = 4/3 and tan B=12/5.find cos (A-B) given 0< A<B<pie/2

Question 313336: if tan A = 4/3 and tan B=12/5.find cos (A-B)
given 0< A
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

Similarly for ,

Use the trig identity,

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