## aussy123 2 years ago sec B cot B = sinB/cos²B cosB/sin²B 1/sinB Ive been working this out the way I have all the lessons before this, but I dont get the same answer

1. tomo

sec B cot B sec B = (1/cos(B)) cot B = (1/tan(B)) (1/cos(B))*(1/tan(B)) tan(B) = sin(B)/cos(B) (1/cos(B))*(1/(sin(B)/cos(B))) (1/cos(B))*(cos(B)/sin(B)) 1/sin(B)

2. aussy123

Ooh, I saw those relations at the top but they didn't use the letters, they used delta and I didn't know whether I was supposed to use it. I will copy this in my notes.

3. kausarsalley

first of all, you would have to know that, $\sec \theta = \frac{ 1 }{ \cos \theta }$ $\cot \theta = \frac{ \cos \theta }{ \sin \theta }$

4. kausarsalley

you would have to substitute that in your question and solve it.

5. aussy123

Thank you both, I think I have it now, if I run into any problems Ill def. message you both.

6. kausarsalley

|dw:1363388213384:dw|