Trig Function help

cokeclassic · #1 $Old$ December 2nd, 2008, 06:45 PM

Hello, I have a few problems where I have to solve each equation.... Most of them are simple but I am not understand the ones without the squared function.....

Ex

cosx = sinx

sinx = cscx

csc^2x = cotx +1

any help would be great thank you

mr fantastic · #2 $Old$ December 2nd, 2008, 08:56 PM

Quote:

Originally Posted by cokeclassic $View Post$

Hello, I have a few problems where I have to solve each equation.... Most of them are simple but I am not understand the ones without the squared function.....

Ex

cosx = sinx Mr F says: => tan x = 1 ....

sinx = cscx Mr F says: ${\color{red} \Rightarrow \sin^2 x = 1 \Rightarrow \sin x = \pm 1 \, ....}$

csc^2x = cotx +1 Mr F says: ${\color{red} \Rightarrow 1 + \text{cot}^2 x = \text{cot} x + 1 \Rightarrow \text{cot}^2 x = \text{cot} x \Rightarrow (\text{cot} x) (\text{cot} x - 1) = 0 \, ....}$

any help would be great thank you

..