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√a / √b = √(a/b)
the radical is the thing that houses the number in the problem of a square root. A radical sign looks like a division house just with a tail on the front of it.
A radical is the sign √ which is used to indicate that a root must be calculated. The full format is n√ which indicates that it is the nth root that is required. For square roots the prefix is usually excluded. [As a result many people wrongly assume that the radical sign refers only to square roots.]
It depends on what you mean by solve: simplify, evaluate or rationalise the denominator. The answer will also depend on the radical expression.
Radical neck dissection is a surgical operation used to remove cancerous tissue in the head and neck.