Question

I need some serious help with a few problems..?

Answer 1

@pitamar

Answer 2

Well, I can try. what is it?

Answer 3

given \[\tan (\theta)=-\frac{ 4 }{ 5 }\] and \[\cos (\theta) > 0, \] find the exact values of sin theta and sec theta

Answer 4

I'm told to sketch the problem situation, label the sketch with the given information and determine needed information

Answer 5

Ok, we know our \(\cos(\theta)\) is positive, right? but the \(\tan(\theta)\) is negative, so that means that \(\sin(\theta)\)
For what \(\theta\) we get positive cos() and negative sin()?

Answer 6

sec(theta)=1/cos(theta)

Answer 7

tan (theta)=sin(theta)/cos(theta)
theta = atan(-4/5)

Answer 8

since cos (theta)> 0 then sin(theta) has to be sleek-feathered onetive