Q. 265.0( 1 Vote )

# State with reason which of the following are surds and which are not.         (i) × (ii) × (iii) × (iv) × (v) 5× 2         (vi) × (vii) × (viii) 6× 9 (ix) × (x) ×

(i) × = × =× × =5is a surd.
(ii) × =× = 2 ×××
= 4 is a surd.
(iii) × =× =3× = 9 is not a surd.
(iv) × =4 × 2 = 8 is not a surd.
(v) 5× 2= 5× 2=5× 2× 2×
= 5 × 2× 2 × 2 ×
= 40 is a surd.
(vi) ×= ×=5×= 5 × 5 = 25 is not a surd.
(vii) × = 10 is a surd.
(viii) 6× 9= 54 is a surd.
(ix) × =×
=2× 3
=2××× 3×
= 30 is a surd.
(x) × = × = × × ×
= 3 is a surd.

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