Question

in an Ap,-5,-3,-1,1.......find 25th term​

Answer 1

a=-5 d=-8

25th term= -5+24x-8

=-197

Answer 2

$\huge \mathbb \orange{ANSWER!!!!}$

Given -

• a = - 5

d = a² - a¹

• d = - 3 - (-5)

• d = - 3 + 5

• d = 2

we know that,

• an = a + (n-1)d

Now, according to question -

• an = - 5 + (25-1) 2

• an = - 5 + 24×2

• an = 48 - 5

• an = 43

Hence,

25th term of the AP is 43.