Question

In an A.P -5,-4,-3,-2
and s.--14, then n​

Answer 1

Answer:

n=10

Step-by-step explanation:

becoz in serie wt we have -5,-4,-3,-2 s=14 then n=?

S letter place value is 19 that equals to 19 -5 =14

so N letter place value is 14 that equals to 14 -4=10

SO N=10

Answer 2

Answer:

$an = a + (n - 1)d$

$a = - 5$

$an = - 14$

$d = a2 - a = - 4 - ( - 5) = 5 - 4 = 1$

$- 14 = - 5 + (n - 1)1$

$5 = 14 + n - 1$

$n = 14 - 6 = 8$

No of terms 8