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Write the sum in sigma notation: 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20.

a) Σ(2i) from i=1 to 10
b) Σ(i) from i=1 to 10
c) Σ(2i+1) from i=1 to 10
d) Σ(i+1) from i=1 to 10

1 Answer

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Final answer:

The sum in sigma notation can be written as Σ(2i) from i=1 to 10.

Step-by-step explanation:

The sum can be written in sigma notation as:

a) Σ(2i) from i=1 to 10

Step-by-step explanation:

To find the sum in sigma notation, we need to identify the value that changes as we go through the terms. In this case, the value that changes is the variable i. Since we start with i=1 and go up to i=10, we can write the sum as Σ(2i) from i=1 to 10.

b) Σ(i) from i=1 to 10

Step-by-step explanation:

To find the sum in sigma notation, we need to identify the value that changes as we go through the terms. In this case, the value that changes is the variable i. Since we start with i=1 and go up to i=10, we can write the sum as Σ(i) from i=1 to 10.

c) Σ(2i+1) from i=1 to 10

Step-by-step explanation:

To find the sum in sigma notation, we need to identify the value that changes as we go through the terms. In this case, the value that changes is the variable i. Since we start with i=1 and go up to i=10, we can write the sum as Σ(2i+1) from i=1 to 10.

d) Σ(i+1) from i=1 to 10

Step-by-step explanation:

To find the sum in sigma notation, we need to identify the value that changes as we go through the terms. In this case, the value that changes is the variable i. Since we start with i=1 and go up to i=10, we can write the sum as Σ(i+1) from i=1 to 10.

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