As given it is the coefficient in a binomial expansion.
One the calcultor
'Clear; , '7', 'nCr', '2', .=. '21'.
Algenraically
7! / ( 2!(7-2)!)
7! / 2!*5! =
7 x 6 / 2 x 1 = 42 / 21 = 21
The exclamation mark '!' means factorial. Hence 7! , 7 factorial = 7x6x5x4x3x2x1.
However, On a different 'pitch', do you mean '7c^(2)' , which is 'seven 'c' squared'. Which will give a completely different result.
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It is equal to 1.8It is equal to 1.8It is equal to 1.8It is equal to 1.8
Angles are not necessarily equal, and sides are not necessarily equal in length.Angles are not necessarily equal, and sides are not necessarily equal in length.Angles are not necessarily equal, and sides are not necessarily equal in length.Angles are not necessarily equal, and sides are not necessarily equal in length.
It is the same. So they are equal
no its equal to 2000 l
No, they are not equal.