Evaluate `sqrt(6 + 8i)`.

Evaluate: sqrt(-15-8i)

Evaluate : sqrt( 6 ) times sqrt(8)

Evaluate: sqrt(-8i)

Evaluate : ( sqrt(8) - sqrt(2) ) times ( sqrt(8) + sqrt(2) )

Evaluate : 8sqrt(-8) - 2 sqrt(-1)

sqrt(-8-6i) =

Evaluate : (1)/(3-sqrt(8)) -(1)/(sqrt(8)-sqrt(7))+(1)/(sqrt(7)-sqrt(6))-(1)/(sqrt(6)-sqrt(5))+(1)/(sqrt(5)-2).

Evaluate : ((3) - sqrt(8)) / ((3) + sqrt(8) + ( (3) + sqrt(8)) / ( (3) - sqrt(8)