39. This is how it looks like if written.
322Base
Exponent
40. And it is read as โ3 squaredโ
322Base
Exponent
41. Power Meaning Verbal Description
42 4 ร 4
4 to the second power or
4 squared
73
7 ร 7 ร 7
7 to the third power or 7
cubed
84 8 ร 8 ร 8 ร 8 8 to the fourth power
95 9 ร 9 ร 9 ร 9 ร 9 9 to the fifth power
71. Hereโs to follow in approximating square roots.
1. Find the before and just after the number
2. Find the whole number for the approximate square root by
assuming that it is greater than the square root of the before perfect
square by some fraction..
3. Find the denominator by subtracting the perfect square just
after and the perfect square before the number.
4. Find the numerator by subtracting number to be approximated
to the perfect square before it.
5. Change the rational number to decimal.