Final Cover - For Printing

Law 2
Let ‘a’ be the base and ‘m’ and ‘n’ be the powers.

If m>n, then n m-n

m

a

a

a =

If m<n, then n n-m

m

a

a

a =

Law 3
The power of a power is equal to the product of the powers.
(am)n = amn

Law 4
The power of a product is equal to the product of the powers.
(ab)m = am ×^ bm

Law 5
The power of a quotient is equal to the quotient of the powers.

m

m m

b

a

b

a⎟ =

⎠

⎜ ⎞

⎝

⎛

Law 6
Any number (other than zero) raised to the power zero is equal to 1.
A^0 = 1 (A ≠^ 0)

Law 7

n

n

a

a− = 1

Note that a-n is the multiplicative inverse of an.

These abstract ideas can be explained only through more concrete examples and
written descriptions. Use of Braille text material describing these algebraic expressions
is important. As indicated in module 1, effective learning of mathematics takes place
when the teaching aids, descriptions, etc., are supplemented by Braille text materials.