Which quadrant(s) is sin $\theta$  positive?

In the trigonometric ratios, r is always positive.

Is the above statement true or false?

Which of the following is the correct trigonometric ratio for sin $\theta$  ?

Which of the following is the correct trigonometric ratio for $\cos\theta$  ?

 Which of the following is the correct trigonometric ratio for  $\tan\theta$  ? 

Which quadrant(s) is cos $\theta$  positive?

All positive angles in the Cartesian plane are measured from the positive x-axis in a clockwise direction.

Is the above statement true or false?

If $\sin\theta$ is positive and  $\tan\theta$  is negative, what quadrant are we working in? 

If $\sin\theta$  is positive and  $\tan\theta$  is positive, what quadrant are we working?

If $4\tan\theta=3$ and  $180\degree\le\theta\le360\degree$  

Determine  $\sin\theta\times\cos\theta$   

If $\sin\theta=-\frac{6}{7}$ and  $\theta\epsilon\left[90\degree;270\degree\right]$  

What quadrant would you be working in? 

If $\sin\theta=-\frac{6}{7}$ and  $\theta\epsilon\left[90\degree;270\right]$  
Determine what  $\tan^2\theta$  

If $8\tan\theta\ +15=0$ and  $\cos\theta>0$  

Determine  $17\sin\theta+6$