MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Arithmetic Progression

The nth terms...

Question

The nth terms of an A.P. is $4$ $n^{2}$ , what is the first term ?

Open in App

Solution

$n^{t h}$ $t e r m$ $= 4 n^{2}$

Therefore,

$a_{1} = 4 (1)^{2} = 4$

Suggest Corrections

thumbs-up

0

Similar questions

Q. If the sum of first n terms of an A.P is

4 n - n^{2} .

what is the first term? what is the sum of first two terms Also find 2nd,3rd,10th and nth terms of A.P.

Q. The sum of first n terms of an A.P. is 5n − n². Find the n^th term of this A.P.

Q. The nth terms of an A.P. is

\frac{3 + n}{4}

, then the sum of first 105 terms is

Q. If the sum of the first n terms of an

A . P

4 n - n^{2}

, what is the first term (that is

S_{1}

)? What is the sum of first two terms? What is the second term? Similarly, find the

3 r d

10 t h

and the nth terms.

The $n^{t h}$ terms of an A.P. is given by $(- 4 n + 15)$ . Find the sum of first $20$ terms of this A.P.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Arithmetic Progression

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Arithmetic Progression

Standard X Mathematics

Join BYJU'S Learning Program

CrossIcon