Given that the opposite number of a is 1 and 3 / 2, and the opposite number of B is - 2 and 2 / 1, find the value of the algebraic formula a-2b / A + 3B

Given that the opposite number of a is 1 and 3 / 2, and the opposite number of B is - 2 and 2 / 1, find the value of the algebraic formula a-2b / A + 3B

The opposite number of a is 1 and 2 / 3, a = - 1 and 2 / 3, the reciprocal of B is - 2 and 1 / 2 = - 5 / 2, so B = - 2 / 5, so the original formula = (- 1 and 2 / 3-6 / 5) / (- 1 and 2 / 3 + 4 / 5) = - 43 / 15 / (- 13 / 15) = 4 / 3

How to use Excel to calculate frequency, cumulative frequency and frequency, for detailed explanation
67 59 58 62 58 62 54 56 58 62
60 62 59 66 53 59 65 59 66 60
58 54 58 57 69 64 64 55 63 69
59 60 58 66 63 49 60 57 63 57
62 64 66 56 58 51 61 65 62 57
53 46 54 59 58 61 57 51 65 53
Packet frequency accumulation frequency frequency
45.48.5
48.51.5
51.54.5
54.57.5
57.60.5
60.63.5
63.66.5
66.69.5
If no one can help me to write out the number of values in the blank space, thank you. I don't know how to answer my question just now. I can't see the picture clearly

1. Please refer to frequency (). & nbsp; attached result chart:

How to use Excel to calculate the frequency of an interval
For example, for a set of raw data 1,4,7,23,..., find the frequency falling into the interval 2-4

=SUMPRODUCT((A1:A100>=2)*(A1:A100

How to use Excel to group data, compile frequency distribution table and calculate cumulative frequency and cumulative frequency?

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