8th Class Maths | Chapter 4 | Exercise 4.2 | Q1-Q2 | Powers and Exponents | Nivas Info

Описание: ఘాతాంకాలు మరియు ఘాతాలు | 8 వ తరగతి గణితం | అధ్యాయం 4 | అభ్యాసం 4.2
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Exercise – 4.1 / Part - 1 :    • 8th Class Maths | Chapter 4 | Exercise 1 |...  
Exercise – 4.1 / Part – 2 :    • 8th Class Maths | Chapter 4 | Exercise 4.1...  
Exercise – 4.2 / Part – 1 :    • 8th Class Maths | Chapter 4 | Exercise 4.2...  
Exercise – 4.2 / Part – 2 :    • 8th Class Maths | Chapter 4 | Exercise 4.2...  
Introduction to Powers and Exponents :    • Introduction to Powers and Exponents - ఘాత...  
Rules of Exponents :    • Laws of Exponents | Properties of Powers (...  
Powers with Negative Exponents :    • Powers with Negative Exponents | ఋణ ఘాతాంక...  
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Some Important Points about Powers and Exponents
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1. Numbers with negative exponents holds the following laws of exponents
(a) a power of m × a power of n = a power of m+n
(b) a power of m/ a power of n = a power of m–n = 1 / a power of n − m
(c) (a power of m) whole power of n = a power of mn
(d) a power of m × b power of m = (ab) power of m
(e) a power of 0 = 1
(f) a power of m / b power of m = (a / b) power of m
2. Very small numbers can be expressed in standard form using negative exponents.
3. Comparison of smaller and larger numbers.
4. Identification of common errors.
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In This Chapter :
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Introduction to Powers and Exponents
Powers with Negative Exponents
Laws of Exponents
Application of Exponents to Express numbers in Standard Form
Comparing very large and very small numbers
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Exercise – 4.2
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