Question

if the fourteenth term of an ap be 6 and 6th term be14 find its 20th term​

Answer 1

$\huge\star{\tt{\underline{\underline{\red{Answer}}}}}\star$

a14=a+13d

$\implies$a+13d=6

a6=a+5d

$\implies$a+5d=14

Now,

From the above equations

a=6-13d

in the second equation

(6-13d)+5d=14

-13d+5d=14-6

$\implies$-8d=8

$\large{\boxed{\boxed{d=-1}}}$

a=6-13(-1)

a=13+6

$\large{\boxed{\boxed{a=19}}}$

Answer 2

Step-by-step explanation:

here is your answer .... hope it helps you