Write the algebraic form of the sequence and its sum of n terms. 4,9,14,19,.....

Write the algebraic form of the sequence and its sum of n terms. 6,11,16,21,....

Write the algebraic form of the sequence and its sum of n terms. 5,10,15,20, ...

Write the algebraic form of the following sequence and its sum of n terms. 3,8,13,18,....

Consider, the arithmetic sequence 2x+1,4x-1,5 x+1,…. a) Find x. b) Write the algebraic form of the sequence. c) Find the position of 195 in this sequence.

23,30,37,.... is an arithmetic sequence a) Write the algebraic form of the sequence. b) Write the algebraic form of the sum of n terms of the sequence. c) Prove that the square of any term of this sequence will not be a term in this sequence. d) Prove that there will be so many, perfect squares in this sequence.

Sum of first 9 terms of an arithmetic sequence is 261, and the sum of next 6 terms is 444. i)- Find the first term and common difference. ii) Write the algebraic form of the sequence: iii) Write the algebraic.form of the sum.

Write three arithmetic sequences with. sum 70 and having 5 terms.

What is the sum of first 20 natural. numbers? b) Find the sum of .first 20 terms of 4,8 , 12,.... c) If 3 is added to each term in the above sequence, write down the algebraic expression of the new sequence. d) Find the sum of first 20 terms of the new sequence.

Consider the arithmetic sequence 17,20,23,26,….. a) Write the algebraic form of this sequence. b) Is 400 a term of this sequence?. c) Is the square of any term of this sequence belongs to this sequence? Why?

For the sequence of regular polygons starting with an equilateral triangle, write the algebraic expressions for the sequence of the sums of interior angles, the sums of the exterior angles, the measures of an interior angle, and the measures of an exterior angle.