Tuesday

March 3, 2015

March 3, 2015

Posted by **Valerie** on Saturday, May 5, 2012 at 2:09am.

1)Mulitply:

[cosx/(1-cosx)][1+sinx/(1+sinx)]

2)Rewrite over common denominator:

[1/(1-cosx)]+[1/(1+cosx)]

3)Establish the identity:

[(1-cot^2x)/(1+cot^2x)]+1=2sin^2x

- PreCalculus (PLEASE HELP, IM BEGGING!) -
**Steve**, Saturday, May 5, 2012 at 5:03amcos/(1-cos) * ((1+sin)+sin)/(1+sin)

cos(1+2sin)/((1-cos)(1+sin))

Not sure how to make it any simpler. No chance of a typo in the problem?

----------------------------

((1+cos) + (1-cos))/(1-cos)(1+cos)

2/sin^2

----------------------

(1-cos^2/sin^2)/(1+cos^2/sin^2) + 1

(sin^2 - cos^2)/sin^2) / ((sin^2+cos^2)/sin^2) + 1

(sin^2-cos^2)/(sin^2+cos^2) + 1

(sin^2 - cos^2) + 1

sin^2 + 1-cos^2

sin^2+sin^2

2sin^2

**Answer this Question**

**Related Questions**

Science - I REALLY REALLY NEED HELP SO 1.I need to do an essay asking you (me)to...

trig - I'm confused with this concept: Okay, so I have this problem: cos2x( 2 ...

AlgebraII - I really stuck on binomial theorem and I have a whole worksheet due ...

Math - I need some help please. I dont understand the math that we are doing. ...

Algebra 1 - I need some help please. I dont understand the math that we are ...

Social Studies - PLEASE EXPLAIN IN YOUR OWN WORDS PLEASE PLEASE HELP IN YOUR OWN...

algebra 1 - How do you simplify this problem? I really need help.I need it step ...

English - I really need help with this essay! My teacher gave me this outline ...

Please I'm begging someone help me with biology - I need help with listing two ...

Please I'm begging someone help me with biology - I need help with listing two ...