# Help with inverse trigonometric equation

• November 14th 2012, 04:14 PM
cdbowman42
Help with inverse trigonometric equation
cos-1 + tan-1 = π/2

Where do I begin with this?
• November 14th 2012, 04:34 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?

$\cos^{-1}(of \, what?) + \tan^{-1}(of \, what?) = \frac{\pi}{2}$
• November 14th 2012, 06:35 PM
cdbowman42
Re: Help with inverse trigonometric equation
sorry,