Radicand

Definition

The number or expression beneath a root sign; in $\sqrt{12}$ , the radicand is $12$ .

Specification N8 · Paper 1, Paper 2, Paper 3

The number or expression beneath a root sign; in $5\sqrt7$ , the radicand is $7$ .

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Check the radicand—the number under the root sign: $\sqrt{49}=7$ because 49 is a perfect square, whereas remains a surd.

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Specification N8 · Paper 1, Paper 2, Paper 3

Specification 3.03a · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)

The number or expression beneath a root sign; for example, 7 is the radicand in $\sqrt{7}$ .
The radicand is the number beneath the root sign.
Revise: Exact Values

=

7

\sqrt{7}