Question

if the 8th term of an arithmetic progression is -52 and its 12th term is -85. Find the arithmetic progression?​

Answer 1

$\huge \underbrace \mathfrak \red{ \star \: {Answer} \: \star}$

8 term = a+7d = 12

12 term = a+11d = 8

Solving these two equations, we get,

Subtracting both we get,

4d = -4

d = -1

Putting d=-1, we get a= 19

Then arithmetic progression will be,

19, 18, 17, 16, 15......

HOPE SO IT WILL HELP....

Answer 2

Step-by-step explanation:

$</p><p>8 term = a+7d = 12</p><p></p><p>12 term = a+11d = 8</p><p></p><p>Solving these two equations, we get,</p><p></p><p>Subtracting both we get,</p><p></p><p>4d = -4</p><p></p><p>d = -1</p><p></p><p>Putting d=-1, we get a= 19</p><p></p><p>Then arithmetic progression will be,</p><p></p><p>19, 18, 17, 16, 15......</p><p></p><p>HOPE SO IT WILL HELP....</p><p></p><p>$

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