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T O P I C R E V I E W
chapsticks	Posted - 12/07/2011 : 11:09:55 Verify the identity: arctanx+ arctan (1/x)=( ∏/2) using calculus theory. differentiate the left hand side of the identity.
1 L A T E S T R E P L I E S (Newest First)
royhaas	Posted - 12/08/2011 : 01:20:36 The hint should be that taking the derivative of both sides will show that the original left hand side must be constant. Use the chain rule to show this.