Question

a) Write the sum of first 20 Natural numbers.

b) How much more is the sum of first 20 terms of the Arithmeti sequence

4,7,10.... than the sum of first 20 terms of the Arithmetic sequence 3,5,7....​

Answer 1

Answer:

ur answers :-

a. The number series 1, 2, 3, 4, . . . . , 19, 20. Therefore, 210 is the sum of positive integers upto 20.

b. Find the values of the sequence's first term, u1, and of its common difference, d. The sum of the first 20 terms of an arithmetic sequence is 550.

Answer 2

Answer:

a) Write the sum of first 20 Natural numbers.

b) How much more is the sum of first 20 terms of the Arithmeti sequence

4,7,10.... than the sum of first 20 terms of the Arithmetic sequence 3,5,7