# using trig identities

• November 1st 2009, 03:36 PM
burner
using trig identities
i need to use trig identities to transform one side of the equation into the other, here is the equation.

$
\dfrac{\tan a+\cot a}{tan a} = \csc^2 a
$
• November 1st 2009, 03:39 PM
skeeter
Quote:

Originally Posted by burner
i need to use trig identities to transform one side of the equation into the other, here is the equation.

$
\dfrac{\tan a+\cot a}{tan a} = \csc^2 a
$

multiply numerator and denominator of the left side by $\cot{a}$