Question 982575
Not likely written correctly.  

Do you really have this: (1+cot^2(x))/csc^2(x)=1
?


{{{(1+cot^2(x))/csc^2(x)=1}}}


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Make use of the well-enough known identify {{{csc^2(x)-cot^2(x)=1}}} which is very easily derived.