Question 1061980
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Find the values of each of the other five trigonometric functions for an angle theta (without finding theta) 
given that theta is in 4th quadrant and sin theta = -4/5
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In QIV  {{{cos(theta)}}} = {{{sqrt(1-sin^2(theta))}}} = {{{sqrt(1-(-4/5)^2)}}} = {{{3/5}}}
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This is the key value.


The rest are 


{{{tan(theta)}}} = {{{sin(theta)/cos(theta)}}} = {{{((-4/5))/((3/5))}}} = {{{-4/3}}},


{{{cotan(theta)}}} = {{{1/tan(theta)}}} = {{{-3/4}}},


and so on . . . 
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