If `cos e cA=sqrt(10),` find other five trigonometric ratios.

Explanation

If `csc A = root(10)/1, `construct a triangle that has that csc A as that value.


`csc = 1/sin = 1/(opp/hypo) = (hypo)/(opp).`


Hence the triangle would have side 1 and hypotenuse root(10).


Plugging into the Pythagorean theorem, one can see that the other side is 3. With that out of the way, we can start constructing the other 5 trig ratios.


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