Chapter 7: Q 46. (page 615)

Given that $a_{0} = - 3, a_{1} = 5, a_{2} = - 4, a_{3} = 2$ and ${\sum a_{k}}_{k = 2}^{\infty} = 7$ , find the value of ${\sum a_{k}}_{k = 4}^{\infty}$ .

Short Answer

Expert verified

The value of ${\sum a_{k}}_{k = 4}^{\infty}$ is 9.

Step by step solution

Step 1. Given information.

Given that $a_{0} = - 3, a_{1} = 5, a_{2} = - 4, a_{3} = 2$ and ${\sum a_{k}}_{k = 2}^{\infty} = 7$ .

Step 2. Express the series in terms of known values.

Value of ${\sum a_{k}}_{k = 4}^{\infty}$ can be obtained as follows.

$\begin{array}{rcl} {\sum a_{k}}_{k = 4}^{\infty} & = & {\sum a_{k}}_{k = 2}^{\infty} - (a_{2} + a_{3}) \\ = & 7 - (- 4 + 2) \\ = & 7 + 2 \\ = & 9 \end{array}$

Therefore, value of $\sum_{k = 4}^{\infty} a_{k}$ is 9.

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Given that $a_{0} = - 3, a_{1} = 5, a_{2} = - 4, a_{3} = 2$ and ${\sum a_{k}}_{k = 2}^{\infty} = 7$ , find the value of ${\sum a_{k}}_{k = 4}^{\infty}$ .

Short Answer

Step by step solution

Step 1. Given information.

Step 2. Express the series in terms of known values.

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Given thata0=-3,a1=5,a2=-4,a3=2and∑akk=2∞=7, find the value of∑akk=4∞.

Short Answer

Step by step solution

Step 1. Given information.

Step 2. Express the series in terms of known values.

One App. One Place for Learning.

Most popular questions from this chapter

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Logic and Functions

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Given that $a_{0} = - 3, a_{1} = 5, a_{2} = - 4, a_{3} = 2$ and ${\sum a_{k}}_{k = 2}^{\infty} = 7$ , find the value of ${\sum a_{k}}_{k = 4}^{\infty}$ .