If and

Without using calculator prove that

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- Jul 5th 2009, 08:37 PMpankajInverse trigonometric function
If and

Without using calculator prove that - Jul 5th 2009, 09:37 PMapcalculus
- Jul 5th 2009, 11:00 PMGrandadInverse trig functions
Hello pankajFirst, let's note that A and B can have infinitely many values. Some will give A > B and some will give A < B. So I think we must assume that all inverse trig functions are assumed to be principle values.

Secondly, on this assumption, I'm afraid that it just isn't true! Try it with your calculator, and you'll see.

Could you please check that we have the correct question here?

Grandad