Question

hey can u pls tell all the formulas from exponents for class 7​

Answer 1

If p is a rational number and have a non-zero value, m is a natural number, then,

$p × p × p × p ×…..× p (m times)$ is written as pm, where p is the base number and m is the exponent value and pm is the power and $‘ {p}^{m}$ ’ is said as ‘p – raised to the power m’. This is the general representation of exponents and powers.

Example: $9 × 9 × 9 × 9 × 9 × 9 × 9 = {9}^{7}$ , where 9 is the base number and 7 is the exponent.

Laws of Exponents

If p and q are non- zero rational numbers and m and n are natural numbers, then the laws of exponents can be written as..

• ${p}^{m}×{p}^{n}={p}^{m+n}$
• $({p}^{m})^{n}={p}^{mn}$

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Some laws are in the attachment

Answer 2

Step-by-step explanation:

Laws of Integral Exponents

For any two real numbers a and b, a, b ≠ 0, and for any two positive integers, m and n

➲ If a be any non - zero rational number, then

a^0 = 1

➲ If a be any non - zero rational number and m,n be integer, then

(a^m)^n = a^mn

➲ If a be any non - zero rational number and m be any positive integer, then

a^-m = 1/a^m

➲ If a/b is a rational number and m is a positive integer, then

(a/b)^m = a^m/b^m

➲ For any Integers m and n and any rational number a, a ≠ 0

a^m × a^n = a^m+n

➲ For any Integers m and n for non - zero rational number a,

a^m ÷ a^n = a^m-n

➲ If a and b are non - zero rational numbers and m is any integer, then

(a+b)^m = a^m × b^m

I hope it's help you...☺