Show that `cot (142\ 1/2) ^@ = sqrt(2) + sqrt(3) - 2 - sqrt(6)`

Show that cot (7 (1)/(2)) = sqrt(2) + sqrt(3) + sqrt(4) + sqrt(6) .

Prove that cot 142.5^circ = sqrt2 + sqrt3 - sqrt4 - sqrt6 .

Show that : tan(142(1^@/2))=2+sqrt2-sqrt3-sqrt6

Prove that cot 7 ""(1^(@))/(2) = sqrt2 + sqrt3 + sqrt4 + sqrt6 = (sqrt3 + sqrt2) (sqrt2 +1 ).

Show that cot 7(1^@/2)=2+sqrt2+sqrt3+sqrt6

Prove that: tan142(1^(@))/(2)=2+sqrt(2)-sqrt(3)-sqrt(6)

Prove that : tan 142 1^@/2 =2+sqrt2-sqrt3-sqrt6 .

Prove that: "tan"142""(1^0)/2=2+sqrt(2)-sqrt(3)-sqrt(6)

Prove that, cot 7 1/2 ^@ or tan 82 1/2 ^@ = (sqrt(3)+sqrt(2))(sqrt(2)+1) or sqrt(2)+sqrt(3)+sqrt(4)+sqrt(6)

Prove that, cot 7 1/2 ^@ or tan 82 1/2 ^@ = (sqrt(3)+sqrt(2))(sqrt(2)+1) or sqrt(2)+sqrt(3)+sqrt(4)+sqrt(6)