190k views
4 votes
Write each of the following series in sigma notation:

A. 4 + 16 + 64 + 256 + ...
B.3/4+4/5+5/6
C. 49m⁶ + 64m² + 81m⁸+ 100m⁹+ 121m¹⁰

User Nidkil
by
7.5k points

1 Answer

2 votes

Final answer:

A. The series 4 + 16 + 64 + 256 + ... can be written in sigma notation as Σ(4^(n-1)). B. The series 3/4 + 4/5 + 5/6 + ... can be written in sigma notation as Σ((n+2)/(n+3)). C. The series 49m⁶ + 64m² + 81m⁸+ 100m⁹+ 121m¹⁰ can be written in sigma notation as Σ((n+6)^2 * m^(2n)).

Step-by-step explanation:

A. The given series 4 + 16 + 64 + 256 + ... can be written in sigma notation as Σ(4^(n-1)), where n ranges from 1 to infinity. This means that the first term of the series is 4^(1-1) = 4^0 = 1, the second term is 4^(2-1) = 4^1 = 4, the third term is 4^(3-1) = 4^2 = 16, and so on.

B. The given series 3/4 + 4/5 + 5/6 + ... can be written in sigma notation as Σ((n+2)/(n+3)), where n ranges from 0 to infinity. This means that the first term of the series is (0+2)/(0+3) = 2/3, the second term is (1+2)/(1+3) = 3/4, the third term is (2+2)/(2+3) = 4/5, and so on.

C. The given series 49m⁶ + 64m² + 81m⁸+ 100m⁹+ 121m¹⁰ can be written in sigma notation as Σ((n+6)^2 * m^(2n)), where n ranges from 0 to infinity. This means that the first term of the series is (0+6)^2 * m^(2*0) = 6^2 * m^0 = 36 * 1 = 36, the second term is (1+6)^2 * m^(2*1) = 7^2 * m^2 = 49m^2, the third term is (2+6)^2 * m^(2*2) = 8^2 * m^4 = 64m^4, and so on.

User Santhosh Divakar
by
8.2k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories