Question 926729
270°<&#952;<360° means the angle is in the 4th quadrant
where the cos is positive
If I say cos = b/c and sin = a/c, I can also say:
{{{ b = 12 }}}
{{{ c = 13 }}}
{{{ a^2 = c^2 - b^2 }}}
{{{ a^2 = 13^2 - 12^2 }}}
{{{ a^2 = 169 - 144 }}}
{{{ a^2 = 25 }}}
{{{ a = -5 }}} ( it's in the 4th quadrant )
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{{{ sin( theta ) = -5/13 }}}
{{{ tan( theta ) = -5/12 }}}
{{{ cot( theta ) = -12/5 }}}
{{{ sec( theta ) = 13/12 }}}
{{{ csc( theta ) = -13/5 }}}
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Draw the picture if that helps
actually, always draw the picture