Question

For an A.P. 8th term is 17. Write an equation
relating a and d.​

Answer 1

Step-by-step explanation:

This is the answer. Hope it will help you :)

Answer 2

Equation is $\bf \red{a + 7d = 17}$, that shows the relation of a and d.

Given:

• For an A.P. 8th term is 17.

To find:

• Write an equation relating a and d.

Solution:

Formula to be used:

General term of AP:$\bf a_n = a + (n -1 )d$

here,

a: First term

d: Common difference

n: number of term

Step 1:

Write the given terms.

It is given that

n=8

$a_8 = 17$

Step 2:

Write the terms in formula of general term.

$17 = a + (8 - 1)d$

or

$17 = a + 7d$

or

$\bf a + 7d = 17$

Thus,

Equation that shows the relation of a and d is a+7d= 17.

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