Posted by Jamie on Tuesday, September 28, 2010 at 8:12pm.
I think the answer is secθ but I don't know how to get this.
2.) (tanθ) / (cos)(90° -θ)
3.) 3sin2xcos2x - sin4x
4.) (cosx + tanx) / (csc^2 x)
- Math- Simplifying Identities - Reiny, Tuesday, September 28, 2010 at 8:37pm
= - 1/sinŲ
= - csc(Ų)
(test your answers with some weird angle, don't use 30's , 60's, or 45's)
2. you will have to know that
cos(90°-x) = sinx
take it from there
3. 3sin2xcos2x - sin4x
= 3sin2xcos2x - 2sin2xcos2x
4. change everything to sines and cosines and just mess around with it.
make sure to test your answer vs the original with some strange angle on your calculator.
Answer this Question
More Related Questions
- Trig - Given that csc θ = -4 and tan θ > 0, find the exact value of...
- Math Question - Given tan θ = -8/5 and sin θ < 0, find sin θ, ...
- Math Question - Find the values of the six trigonometric functions of an angle ...
- trig - The terminal side of θ lies on a given line in the specified ...
- precalculus - #1 cscθ-cotθ #2 cosθ(tanθ-secθ) #3 tan...
- Math - Find sec θ and csc θ. If tan θ =3 and cos θ>0. ...
- Trigonometry - Verify the identities. 1.) SIN[(π/2)-X]/COS[(π/2)-X]=...
- precalculus - the following is a point not on a unit circle. θ → (-5,...
- Trigonometry - Could someone please help me with the following q's I'm having ...
- Math - Calculus - The identity below is significant because it relates 3 ...