Which of the following two periods contain the same number of element? A. 2 & 3 B.3 & 4 c. 4 & 6 D. 2 &

Question

Which of the following two periods contain the same number of element?
A. 2 & 3
B.3 & 4
c. 4 & 6
D. 2 & 4​

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Yến Oanh 5 years 2021-07-11T10:21:05+00:00 1 Answers 19 views 0

Answers ( )

  1. vankhanh
    0
    2021-07-11T10:22:45+00:00
    Reply

    Answer:

    4 and 6

    Explanation:

    Period 4 has 18 elements and so does period 6.

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )