求求求求...help

如果a = 2, b = 3, c = 6, 求下列式的值

1. S = a + b + c
= 2 + 3 + 6
= 11

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2. T = (a + b + c) / a
= (2 + 3 + 6) / 2
= 11/2
= 5.5


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3. S = (a + b + c) / abc
= (2 + 3 + 6) / (2 * 3 * 6)
= 11 / 36

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4 Y = (ab + bc)
= 2 * 3 + 3 * 6
= 6 + 18
= 24

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5. A = [2c + 2a] / 2
= [2 * 6 + 2 * 2] / 2
= [12 + 4] / 2
= 16 / 2
= 8

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6. S = (a + b + c) / abc

Same as question 3….