rút gọn :2^19.27+15.4^9.9^4/6^9.2^10+12^10

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rút gọn :2^19.27+15.4^9.9^4/6^9.2^10+12^10

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Camila 11 phút 2021-09-07T12:44:39+00:00 2 Answers 0 views 0

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    0
    2021-09-07T12:46:09+00:00

    Đáp án:

     

    Giải thích các bước giải:

    Chúc bn hok tốt !

    0
    2021-09-07T12:46:17+00:00

    `\frac{2^19. 27+15. 4^9. 9^4}{6^9. 2^10+12^10}`

    `=\frac{2^19. 3^3+3.5. (2^2)^9. (3^2)^4}{6^9. 2^10+6^10. 2^10}`

    `=\frac{2^19. 3^3+5. 2^18. 3^9}{6^9. 2^10.(1+6)}`

    `= \frac{2^18. 3^3.(2+5. 3^6)}{6^9. 2^10.(1+6)}`

    `= \frac{2^18. 3^3. 3647}{6^9. 2^10. 7}`

    `= \frac{2^10. 2^8. 3^3. 3647}{2^9. 3^9. 2^10. 7}`

    `= \frac{3647}{2. 3^6. 7}`

    `= \frac{3647}{10206}`

    `= \frac{521}{1458}.`

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