Math, asked by rupa12345sss, 9 months ago

Find the following sum:
1+ 4 + 7 + 10 + ... +118

Answers

Answered by Anonymous

3

first find the length of the AP which is l = a + (n-1)d

then apply the formula Sn = n/2 (a+l)

Previous Question

Next Question

Similar questions

Math, 5 months ago

solve the following...

Social Sciences, 5 months ago

Explain what does the Book Social Council, an organ of the UN?

Math, 5 months ago

1.8 multiply by 2.5...

Chemistry, 9 months ago

C. A compound contains atoms of three elements A, B and C. If the oxidation state of A is +2, B is +5 and that of Cis -2, the compound is possibly represented by a. A,(BC), b. A, (BC), c. A, (B,C), d. ABC...

Math, 9 months ago

The height of a cone is 45 cm. If its volume is 4710 cm3. Find the radius of the base.

English, 11 months ago

My friends trust me convert into passive voice...

Math, 11 months ago

Compared to last year was a 75% decrease...

Chemistry, 11 months ago

A, B and C are 3 element which undergo chemical changes according to the following equations. 1] A2O3+ 2B = B2O3 + 2A. 2] 3CSO4 +2B= B2(SO4)3 + 3C. 3] 3CO+ 2A = A2O3 + 3C. A] Which of these is most reactive . B] Which of these is least reactive. C] Arrange these elements in the order of the increasing reactive.