1, the first thing to say is that when typing on the computer, the symbol indicating the root number is not what it looks like in the math textbook, but is represented by "√". This symbol can be played by keyboard combination, that is, hold down the Alt key on the keyboard first.

2. Press 4 1420 on the small numeric keypad on the right side of the keyboard, then let go, and you can tick.

Method 2:

If you type by input method, such as sogou input method, we will directly enter "Yes" and you will see √ in the text selection box.

Method 3:

1, and then click the soft keyboard icon of sogou Input Method, and then click "Special Symbol".

2. Find "√".

Extended data:

If a? =b, then a is the n-th root of b or a is the 1/n power of b.

√ AB = √ A √ B √ A ≥ 0B ≥ 0 √ This can be used interchangeably. This can be used for simplification at most, such as √ 8 = √ 4 √ 2 = 2 √ 2.

√a/b=√a÷√b﹙a≥0b﹥0﹚。