Wednesday

July 23, 2014

July 23, 2014

Posted by **Trig** on Sunday, November 9, 2008 at 2:12pm.

- Trigonometry -
**Reiny**, Sunday, November 9, 2008 at 3:10pmLeft Side

= cosy/(1+siny) + (1+siny)/cosy , notice the proper brackets !!

= (cos^ y + 1 + 2siny + sin^2 y)/[cosy(1+siny)]

= (2 + 2siny)/[cosy(1+siny)]

= 2(1+siny)/[cosy(1+siny)]

= 2/cosy

= 2secy

= Right Side

**Related Questions**

Trigonometry Help - Simplify: sin(x-y)cosy+cos(x-y)siny = (sinxcosy-cosxsiny)...

Trigo help! - Ok, i've tried this question, and it brings me to no answers. ...

math - sinx+ siny/ (cosx+cosy)= tan 1/2 (x+y) prove this identity

trig - Okay, I've been getting some of these, but I can't seem to verify this ...

calc - what is the derivative of sinx- cosy = 0 in its simplest form? I got to ...

maths (trigonometry) - please solve these if possible Q1. If sinx +siny=3(cosy-...

AP Calculus - I previously posted this but had a mistake in it. Determine dy/dx...

Trigonometry - If Hello, I have been working on this one problem for a while now...

math - Angles x and y are located in the first quadrant such that sinx=3/5 and ...

advanced functions - Angles x and y are located in the first quadrant such that...