# Help with inverse trigonometric equation

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• Nov 14th 2012, 05:14 PM
cdbowman42
Help with inverse trigonometric equation
cos-1 + tan-1 = π/2

Where do I begin with this?
• Nov 14th 2012, 05:34 PM
skeeter
Re: Help with inverse trigonometric equation
Quote:

Originally Posted by cdbowman42
cos-1 + tan-1 = π/2

Where do I begin with this?

$\cos^{-1}(of \, what?) + \tan^{-1}(of \, what?) = \frac{\pi}{2}$
• Nov 14th 2012, 07:35 PM
cdbowman42
Re: Help with inverse trigonometric equation
sorry,

Where do I start with this:

cos-1x + tan-1 x = π/2
• Nov 15th 2012, 04:11 AM
skeeter
Re: Help with inverse trigonometric equation