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Mathematics 17 Online
OpenStudy (18jonea):

Simplify https://api.agilixbuzz.com/Resz/~Ey6YBAAAAAwHYpvLFT3W2B.r1xwq7VWktfz8iMLm8IuoB/19809088,B86/Assets/assessmentimages/alg%202%20pt%202%20u2l7%201.jpg sin θ csc θ tan θ sec θ

OpenStudy (18jonea):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

hint: cot = cos/sin

OpenStudy (18jonea):

sin?

OpenStudy (18jonea):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

\[\Large \frac{\cot(\theta)}{\cos(\theta)}=\cot(\theta)\div\cos(\theta)\] \[\Large \frac{\cot(\theta)}{\cos(\theta)}=\frac{\cos(\theta)}{\sin(\theta)}\div\frac{\cos(\theta)}{1}\] \[\Large \frac{\cot(\theta)}{\cos(\theta)}=\frac{\cos(\theta)}{\sin(\theta)}\times\frac{1}{\cos(\theta)}\] What happens next?

OpenStudy (18jonea):

cos 0= sin1

OpenStudy (18jonea):

?

jimthompson5910 (jim_thompson5910):

A pair of terms will cancel. Which pair of terms?

OpenStudy (18jonea):

cos

jimthompson5910 (jim_thompson5910):

yes, so we'd have \[\Large \frac{\cot(\theta)}{\cos(\theta)}=\frac{\cos(\theta)}{\sin(\theta)}\times\frac{1}{\cos(\theta)}\] \[\Large \frac{\cot(\theta)}{\cos(\theta)}=\frac{\cancel{\cos(\theta)}}{\sin(\theta)}\times\frac{1}{\cancel{\cos(\theta)}}\] \[\Large \frac{\cot(\theta)}{\cos(\theta)}=\frac{1}{\sin(\theta)}\] \[\Large \frac{\cot(\theta)}{\cos(\theta)}=\csc(\theta)\]

OpenStudy (18jonea):

ok so answer b

jimthompson5910 (jim_thompson5910):

`ok so answer b` correct

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