1. Open the Word documents and perform the following operations in sequence: "Insert"-"symbol"-"formula"-"insert new formula". Then, the formula editing box shown on the right of the following figure appears.
2. Select the text in the formula editing box and select "points" under "points" in the "formula tool-design"-"structure" group ", the content on the right of the following figure is displayed in the formula editing box.
3. Select the rectangle on the right of the integral and insert the integral in the "formula tool-design" tab.
4. Select the rectangular box on the right of the second integral symbol, find brackets in the structure group, and select the first square brackets.
5. Enter the corresponding content in the box in the brackets, place the cursor outside the brackets, click "other" in the "symbol" group, and select the dot.
6. After the cursor is positioned to a small dot, locate "score" in the "structure" group and select "score (vertical )".
7. Enter 1 in the rectangle of the numerator, select the rectangle on the denominator, find "root" in the "structure" group, and select "square root ".
8. Enter "1-" in the rectangle of the root type, locate "up and down" in the "structure" group, and select "x².
9. Move the cursor to the right of the fraction, locate "integral" in the "structure" group, and select "x differentiation ".
10. Enter an equal sign after the differentiation, and then insert the integral.
11. Select the rectangle on the right of the integral and insert the integral.
12. Select the rectangular box and enter the remaining content on the keyboard against the formula. Here is "(arcsin x) d (arcsin x )".