Posted by mtd on Wednesday, April 9, 2008 at 2:06pm.
sorry, another I can't figure out
Show that (1cot^2x)/(tan^2x1)=cot^2x
I started by factoring both as difference of squares. Would I be better served by writing in terms of sine and cosine? Such as:
[1(cos^2x/sin^2x)]/[(sin^2x/cos^2x)1]=(cos^2x/sin^2x)

Math (Trig)  Reiny, Wednesday, April 9, 2008 at 2:36pm
I don't think your equation is an identity,
I tried several angles and the Left Side is not equal to the Right Side.
Check your typing.
In general, I try to prove these type of identities by changing everything to sines and cosines, unless I can recognize one of the common trig relationships.
Answer This Question
Related Questions
 algebra  Can someone please help me do this problem? That would be great! ...
 Trig  Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...
 Trigonometry  Please review and tell me if i did something wrong. Find the ...
 trig  Reduce the following to the sine or cosine of one angle: (i) sin145*cos75...
 trig  it says to verify the following identity, working only on one side: cotx+...
 Trig  Solve in terms of sine and cosine: sec(x) csc(x) sec(x) sin(x) so far I ...
 TRIG!  Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...
 Mathematics  Trigonometric Identities  Let y represent theta Prove: 1 + 1/tan^...
 precalculus  For each of the following determine whether or not it is an ...
 PreCalculus  I don't understand,please be clear! Prove that each equation is ...
More Related Questions