What will be the units digit of the square of the following numbers!
(ii) 297
(iv) 7286
(iii) 5125
(i) 39
(iii) 256
Which of the following numbers are perfect squares?
(i) 121
(ii) 136
(iv) 321
The following numbers are not perfect squares. Give reasons?
(i) 257
(ii) 4592
(iii) 2433 (iv) 5050
Find whether the square of the following numbers are even or od
(1) 431 (ii) 2826 (iii) 8204 (iv) 17779
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Answer:
What will be the units digit of the square of the following numbers!
1.(ii) 297=9
iv)7286=6
iii)5125=5
i)39=1
iii)256=6
Which of the following numbers are perfect squares? [121(i)]
(i) 121 (✓)
(ii) 136
(iv) 321
The following numbers are not perfect squares. Give reasons?
(i) 257
(ii) 4592
(iii) 2433 (iv) 5050
BECAUSE THIER UNITS DIGIT IS NOT RESEMBLES TO THE UNIT DIGIT OF PERFECT SQUARES
WHERE (IV)OPTION THOUGH THE UNIT DIGIT IS THE UNIT DIGIT PERFECT SQUARES BUT ITS BEFORES DIGIT IS 5 SO IT IS IMPOSSIBLE
Find whether the square of the following numbers are even or odD
AFTER SQUARE:
(1) 431 = UNIT DIGIT IS 1 =ODD
(ii) 2826= EVEN =UNIT DIGIT IS 6
(iii) 8204 =UNIT IS DIGIT IS 6= EVEN
(iv) 17779=UNIT DIGIT IS 1 =EVEN