Question

which of the following is not rational number a.under root 8 under root 16 under root 9 and under root 25​

Answer 1

Answer:

1 × 1 = I

∴ The unit’s digit of (81)2 will be 1.

(ii) 2 × 2 = 4

The unit’s digits of (272)2 will be 4.

(iii) Since, 9 × 9 = 81

The unit’s digit of (799)2 will be 1.

(iv) Since, 3 × 3 = 9

The unit’s digit of (3853)2 will be 9.

(v) Since, 4 × 4 = 16

The unit’s digit of (1234)2 will be 6.

(vi) Since 7 × 7 = 49

The unit’s digit of (26387)2 will be 9.

(v) Since, 8 × 8 = 64

The unit’s digit of (52698)2 will be 4.

(vi) Since 0 × 0 = 0

The unit’s digit of (99880)2 will be O.

(vii) Since 6 × 6 = 36

The unit’s digit of (12796)2 will be 6.

(x) Since, 5 × 5 = 25

The unit’s digit of (55555)2 will be 5.