Question

Write the first trigonometric function in terms of the second for θ in the given quadrant.
sec θ, tan θ, θ in quadrant II

Answer 1

don't forget this identity \[\huge\rm \sin^2\theta +\cos^2 \theta=1\]

Answer 2

sec x =1/cosx
tanx = sinx/cosx
cot= cosx /sin x
csc x= 1/sinx

sec ,csc cot AND 1/sin ,1/cos,1/ tan are reciprocal of each other

Answer 3

to find sec theta first solve that identity for cos theta

Answer 4

\[\huge\rm \sin^2\theta +\cos^2 \theta=1\]
cos theta = ?

Answer 5

remember the CAST rule for signs