Posted by Natash on Saturday, November 15, 2008 at 4:47pm.
simplify and write the trigonometric equation in terms of sine and cosine.
tan^2xsec^2x

trig  drwls, Saturday, November 15, 2008 at 4:53pm
You have not provided an equation.
Equations have an "=" sign.
You must have left something out.
Perhaps they just want you to write the term tan^2xsec^2x in terms of sines and cosines. If so, they should have said so.

trig  Reiny, Saturday, November 15, 2008 at 5:00pm
from the main Pythagorean Identity we know
tan^2 x + 1 = sec^2 x
so tan^2xsec^2x = tan^2 x  (tan^2 x + 1)
= 1
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