Question

repeated subtraction of 81

LETS SEE WHO WILL GIVE ME ANSWER FAST BY EXPLANING EVERY PART ​

Answer 1

Answer:

81-1=80    (i)

80-3=77    (ii)

77-5=72    (iii)

72-7=65    (iv)

65-9=56     (v)

56-11=45     (vi)

45-13=32   (vii)

32-15=17     (viii)

17-17=0     (ix)

hence square root of 81 is 9