Thursday

December 18, 2014

December 18, 2014

Posted by **Soyer** on Tuesday, April 13, 2010 at 7:51pm.

- trig -
**drwls**, Tuesday, April 13, 2010 at 9:07pmy = -cot(x+(pi/2))

= -cos(x + pi/2)/sin (x + pi/2)

= (-cosx*cospi/2)-sinx*sin pi/2)/

[(sinx cos pi/2)-cosx*sin pi2)]

= -sinx/-cosx = tanx

- trig -
**Bob**, Friday, April 15, 2011 at 10:53pm8========)--------

**Answer this Question**

**Related Questions**

trig - simplify (sec^2x + csc^2x) - (tan^x +cot^2x) to either a constant or a ...

Pr-Cal/Trig - 1)if the graph of f(x)=cotx is transformed by a horizontal shrink ...

trig - I dont understand this. can you please tell how you got each answer? ...

Math - Use the given function values and trigonometric identities (including ...

trig - Find the exact value of the trigonometric function. -cot(pi/4 + 16pi)

trig - simplify to a constant or basic trig function.. 1+tan(x)/1+cot(x)

Math(Correction) - Use the given function values and trigonometric identities (...

Math(Correction) - Use the given function values and trigonometric identities (...

Trig. - I really need help so please help. write the first trigonometric ...

trig - combine fractions and simplify to a multiple of a power of a basic trig. ...