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chapsticks
New Member
USA
1 Posts
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.
royhaas
Moderator
USA
3059 Posts
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.
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