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Mathematics 18 Online
OpenStudy (lin.ivory):

Please determine an expression equivalent to tanx+cotx Thank you!

OpenStudy (anonymous):

\[\tan(x)+\cot(x)=\frac{\sin(x)}{\cos(x)}+\frac{\cos(x)}{\sin(x)}\] \[=\frac{\sin^2(x)+\cos^2(x)}{\cos(x)\sin(x)}=\frac{1}{\cos(x)\sin(x)}=\sec(x)\csc(x)\] might do

OpenStudy (lin.ivory):

but how did the 1/ (cosxsinx) get to the point of secxcscx? thats the part im struggling with! =(

OpenStudy (experimentx):

1/sinx = cscx (cosec x) 1/cosx = sec x

OpenStudy (lin.ivory):

OHH!! OK!! thank you ! =D

OpenStudy (anonymous):

because.... of what experimentx said

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