Exponents and Powers

1 min read

C4 Maths Part 1 - Janani

i) Introduction to exponents and powers ii) Laws of exponents

Arjun

  • Powers of integers
    • base and exponent or index or power terms
    • power till n times
    • (-3)^4 != - (3)^4
    • odd power and even power
  • find the prime factors of the given number and write in exponential terms
  • Ex 5.1
  • Powers of rational numbers
    • power of numerator and power of denominator
    • power of the fraction when the power is same
    • reciprocal of rational numbers with powers
  • Ex. 5.2
  • Laws of exponents
    • multiplication of same base different powers = add the powers
    • division of same base different powers = sub the powers
    • negative power = take reciprocal to change the power into positive
    • power of power = multiply the power
    • power zero = 1
    • multiply same power different base = multiply the number and take power
  • Ex 5.3
    • find the value of …
  • Scientific notation or standard form
    • the decimal is placed after the first digit from the left
    • always written in k * 10^m
    • k is a number between 1 and 10 and m is a whole number
  • Ex 5.4
  • MCQs
  • Assertion Reason Questions
  • Mental Maths
  • Case based
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