1.sum of first n term of an AP if first term is a and common difference is d=__ 2.the nth term of G. P if first term is a and commom ratio is r =__

3.the geometric mean of 4 and 16 =__

4.value of 0!=__

5.sum of first term of G. P if first term is a and common ratio r>1=__

Required Answers :-

It is given that

1.

 First term = a

Common Difference = d

Term = n

Now,

We know that

Nth term of any AP = n/2 [2a + (n-1)d]

2.

First term = a

Common Ratio = r

Term = n

3.

4.

Value of 0! = 1

n!=n×(n−1)!

1! = 1 × (1 - 1)!

1! = 1 × 0!

Therefore,

0! = 1

5.

As we know that

∵ n⁰ = 1

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