"Cube Root" Real Numbers PPT Courseware 4

Description

"Cube Root" Real Numbers PPT Courseware 4

1. Definition of cube root:

If the cube of a number is equal to a, then the number is called the cube root of a

2. If x is the cube root of a, then x³ = a. The cube root of a is written as:

3. We call the operation of finding cube roots the cube root, which is reciprocal with the cubic operation.

Summary: Characteristics of Cube Roots

Any number a has only one cube root

A positive number has a positive cube root;

A negative number has a negative cube root,

The cube root of zero is zero.

Trial test

1. Are the following statements correct?

(1)The cube root of 0.0027 is 0.03

(2)The square root of 0.009 is 0.3

(3) The cube root of a number is equal to the cube of the number, then the number is 1,0,-1.

Fill in the blanks exercise:

(1) The square root of 1 is ____; the cube root is ____; the arithmetic square root is __.

(2) The square root of itself is ____.

(3) The number that the cube root is itself is ____.

(4) The square root of arithmetic is the number itself is ____.

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"Cube Root" PPT courseware 5:

"Cube Root" PPT Courseware 5 Create Situation Import New Lesson Now we are going to make a cube with a volume of 8cm. How long should its edges be? How did you know? What are the lengths of the edges of a cube with a volume of 27cm and a volume of 1000cm? Introduction to self-study..

"Cube Root" PPT courseware 4:

"Cube Root" PPT Courseware 4 Fill in the blanks (1)( )3＝1 (2)( )3＝-1 (3)( )3＝8 (4)( )3＝-8 (5)( )3＝27 ( 6)( )3＝-27 (7)( )3＝64 (8)( )3＝-64 (9)( )3＝0 Think about making a square wooden box so that its volume is...

"Cube Root" PPT courseware 3:

"Cube Root" PPT Courseware 3 Observation and Thinking ( )3=-64 ( )3=1000 ( )3=-1000 ( )3= 0 ( )3=-8/27 Generally, if the cube of a number x is equal to a , that is, x3=a, then this number x is called the cube root of a (also called the cubic root). ..

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Update Time: 2024-10-09

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