Saturday

February 28, 2015

February 28, 2015

Posted by **Charles** on Wednesday, October 8, 2008 at 8:48pm.

- Math (Trig) -
**Reiny**, Wednesday, October 8, 2008 at 8:54pmYou want 1/cos^2 (-2)

i.e. you want the cosine of -2 radians, then square that result, and finally divide 1 by that.

I got 5.7744

- Math (Trig) -
**bobpursley**, Wednesday, October 8, 2008 at 9:00pmsec (-2radian)=-2.40 by calculator

square that, and you get...

**Answer this Question**

**Related Questions**

trig - Am I right on this? 2sec^2(2x)-8=0 2sec^2(2x)=8 divide by 2 sec^2(2x)=4 ...

Math- gr.12 Trig. - Hi, could someone explain to me how to use a counterexample...

Calculus - could anybody please explain how sec x tan x - ¡ì sec x tan^2(x) dx...

math - Determine all the possible values of x where 0 deg is more than or equal ...

trig - Write the expression and evaluate. There should only be one answer which ...

Trig - Find secx if sinx = -4/5 and 270 < x < 360. tan^2x+1=sec^2x (-4/5)^...

trig - For each expression in column I, choose the expression from column II to ...

more trig.... how fun!!!! - if you can't help me with my first question hopw you...

trig 26 - simplify to a constant or trig func. 1. sec ²u-tan ²u/cos ²v+sin ²v ...

Math - Prove Trig. Identities 1. sec è (sec è - cos è)= tan^2 è 2. tan^2 è (1 + ...