แบบทดสอบ เรื่อง เมทริกซ์

คำชี้แจง ให้นักเรียนเลือกคำตอบที่ถูกต้องที่สุด

1. ข้อใดต่อไปนี้เป็นเมทริกซ์หลัก

    ก.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/sec01p03_html_eqn3.gif
    ข.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/sec01p03_html_eqn1.gif
    ค.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/sec01p03_html_eqn9.gif
    ง.  
    http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/sec01p03_html_eqn6.gif
2.  จงหาผลบวกของ http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn5.gif
    ก.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn7.gif

    ข.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn6.gif 
    ค.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn8.gif
    ง.  
    http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn9.gif 
3.จงหาผลลบของ http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn10.gif

    ก.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn11.gif

    ข.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn12.gif

    ค.  ลบกันไม่ได้
    ง. http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn13.gif
     

4. ถ้าให้ http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn14.gifจงหาค่าของ -2A

    ก.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn15.gif

    ข.    http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn16.gif
    ค.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn17.gif

    ง.  
    http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn18.gif 

5.  ข้อใดต่อไปนี้เป็นเมทริกซ์แถว

    ก.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/sec01p03_html_eqn6.gif


    ข.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn12.gif
    ค.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/sec01p03_html_eqn3.gif
    ง. http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/sec01p03_html_eqn1.gif

6.กำหนดให้ http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn25.gifจงหาเมทริกซ์ X  โดยที่ AX = http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn26.gif

    ก. http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn28.gif

    ข.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn27.gif

    ค.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn29.gif

    ง.  
    http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn30.gif 

7.อินเวอร์สของเมทริกซ์ http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn31.gif

    ก.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn34.gif

    ข.http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn35.gif 
    ค.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn33.gif

    ง.  
    http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn32.gif

8. ข้อใดต่อไปนี้คืออินเวอร์สของเมทริกซ์ http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn36.gif

    ก.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn37.gif

    ข.  http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn38.gif

    ค.  ad - bc
    ง. http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn39.gif  

9. ถ้า http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn40.gifจงหา det(A)

    ก.  8
    ข. -16
    ค.  24
    ง.  
    16

10. http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn41.gifจงหา http://www.thaigoodview.com/library/teachershow/sakaew/niracha_p/mathm_5/images/pretest_html_eqn42.gif

    ก. -1
    ข. 0 
    ค. 2
    ง. -2