How do you find the exact value of $1/[cot(pi/4)] - 2/[csc(pi/6)]$ ?

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Answer 1 · 2015-06-08T17:46:46

$1/cot (pi/4) = tan(pi/4)$ = 1

$csc (pi/6) = 1/sin (pi/6) = 1/(1/2) = 2$

$2/csc(pi/6) = 2/2 = 1$

$1/cot (pi/4) - 2/csc (pi/4) = 1 - 1 = 0$

How do you find the exact value of 1/[cot(pi/4)] - 2/[csc(pi/6)]1/[cot(pi/4)] - 2/[csc(pi/6)]?