Can anyone help with #3 it’s algebra!
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Given an angle [tex]\theta[/tex], any angle of the form [tex]\theta+360^\circ n[/tex] where [tex]n[/tex] is an integer is coterminal with [tex]\theta[/tex].
This means [tex]-110^\circ[/tex] is coterminal with [tex]-110^\circ+360^\circ=250^\circ[/tex].