# Quick Trigonometry question

Found 10th Sep 2009
Am I right in thinking that cot^2 x is the same as (cot x)^2

On the first it is meant to read "cot squared x" although it looks a bit like 2x

Cheers
James

Groups
1. Misc

the second one when multiplied out is all squared so its cot^2 x^2 is it not?

Original Poster

But as the x is apart of the cot, would it be individually squared or as a whole?

THe question Im on is....

cot^2 x = 3

I have to solve it and solve it.

I was thinking it would go to

cot x = sqrt 3

Think they're the same - e.g sine squared x is the same as (sine x) squared.

So yes, think you're correct.

I wouldve said individually sqaured. its been more than a year since ive had to think about this lol. and i dont think ive ever used cot. is it similar to cos?

shosie;6259633

I wouldve said individually sqaured. its been more than a year since ive … I wouldve said individually sqaured. its been more than a year since ive had to think about this lol. and i dont think ive ever used cot. is it similar to cos?

It's the cotangent: 1/tan

[FONT=arial]cot²(x)= csc²(x)-1[/FONT]

wtf???

[FONT=arial]cot²(x)= csc²(x)-1=(1/sin[/FONT][FONT=arial]² x)-1
[/FONT]
[FONT=arial]
sin²(x)= [1-cos(2x)]/2

[/FONT][FONT=arial]cot²(x)=(1 / [/FONT][FONT=arial][1-cos(2x)]/2) -1 = (2 / 1 - cos(2x)) - 1

cot[/FONT][FONT=arial]²(3)[/FONT][FONT=arial]= (2/1-cos(6))-1 = ... or something like that :giggle:
[/FONT]

:s...that's way past my school time...wtf will you ever need it for anyways?Trigonomentry is a total BS

Just asked a maths teacher and she said yes they are the same!!