Find the sign of:

$\cos 130°$

Find the sign of:

$\sin 320°$

Find the sign of:

$\tan 225°$

Find an obtuse angle that has the same sine as:

$36°$       [Enter the value excluding degree symbol]

Find an obtuse angle that has the same sine as:

$50°$       [Enter the value excluding degree symbol]

Find an obtuse angle that has the same sine as:

$85°$       [Enter the value excluding degree symbol]

Find an obtuse angle that has the same sine as:

$460°$       [Enter the value excluding degree symbol]

Find an obtuse angle that has the same sine as:$\frac{\mathrm{\pi }}{3}$ is of the form of $\frac{m\mathrm{\pi }}{3}$, then $m=$

Find an obtuse angle that has the same sine as: $\frac{\mathrm{\pi }}{5}$ is of the form of $\frac{m\mathrm{\pi }}{5}$, then $m=$