Math, asked by madhv9837, 1 year ago

Sum of new number of term is n^2+3n. Then find 20th term

Answers

Answered by Saatwiik

1

Answer: 44

Step-by-step explanation:

S₂₁ = (21)²+3(21) = 441 + 63 = 504

S₂₀ = (20)² + 3(20) = 400 + 60 = 460

A₂₁ = S₂₁ - S₂₀ = 504 - 460 = 44

Pls mark as Brainliest

Previous Question

Next Question

Similar questions

Computer Science, 6 months ago

ans _________________________...

English, 6 months ago

what is the diameter of a circle whose area is equal to the sum of the area of a circle of radius 40 cm...

English, 6 months ago

What did Pocahontas do when she saw a huge ship at the horizon?

Science, 1 year ago

A particle executes simple harmonic motion with frequency 2.5 Hz and amplitude 2 m.

Business Studies, 1 year ago

Explain the cultural and political environment in international business...

Biology, 1 year ago

children should write report based on the following points : 1)Importance of water in cell. 2)Problems associated with the deficiency of water. 3)Different way to recover from deficiency of water. Give data, paste pictures and draw diagrams for the given topic where ever possible Please anyone answer my question.

Chemistry, 1 year ago

why is it advisable to use pressure cooker at high altitude...

Science, 1 year ago

what are the number of ATP molecules formed after complete oxidation of a glucose molecules...