Wednesday
April 1, 2015

Homework Help: trig

Posted by Devon on Monday, May 7, 2007 at 8:57pm.

it says to verify the following identity, working only on one side:

cotx+tanx=cscx*secx

Work the left side.
cot x + tan x = cos x/sin x + sin x/cos x
= (cos^2 x +sin^2x)/(sin x cos x)
= 1/(sin x cos x)
= 1/sin x * 1/cos x
You're almost there.

thanks so much! i could not figure that one out!

but i did now, lol.

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