1.

Find the correct statement:

Answer»

a, (a + d), (a + 2D), (a + 3D),a + nd is called Geometric progression.
There are n terms in the expansion of `(x + a)^(n)`
If a and b are positive integers the n `(a+b)/2` is called Harmonic MEAN between a and b
`x_(n)=x_(n-2)n ge3` with `x_(0)=1, x_(1)=1` is called Fibonacci sequence.

Answer :d


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