show that sin-1(3/5) + tan-1(7/24) = cos-1(3/5) any help will be greatly appreciated ! thank you!
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Originally Posted by iiharthero show that sin-1(3/5) + tan-1(7/24) = cos-1(3/5) any help will be greatly appreciated ! thank you! Hint : LHS 1) convert 2) now use identity (if x>0,y>0 & xy<1) 3)and last, use identity you will get RHS.
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