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VLD [36.1K]
3 years ago
7

Evaluate C(8,2) thank u!!!!

Mathematics
1 answer:
nekit [7.7K]3 years ago
3 0

Step-by-step explanation:

Given in the question,

C(8,2)

Formula to use:

nCr = n! / r! * (n - r)!

here n = 8

r = 2

We have to calculate combinations of 8 object taken 2 at a time, then

C(8,2)

8C2

8! / 2! * (8 - 2)!

56/2

28

So, 8C2 = 28

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Right 2, is +2 to x axis
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so now it is (6,5)
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so now it is (6,2) which is your answer

When reflected over the y axis, you will be changing your x, and vice versa.
for B(-4,2), it will become B(4,2)  For A, it will go from (3,6) to (-3,6), etc.

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