Question

find the 25th term of an ap 5,4 *1/2 ,4 , 3*1/2 ,3

Answer 1

Step-by-step explanation:

25th term - 24a+d

so. a- 5. find d

$d = a2 - a1$

that is (4 1/2 )- 5

(9/2) - 5

4.5 - 5

-0.5

now substitute

24a+d

$24 \times 5 + 0.5$

120+ 0.5

120.5

1201/2 is the answer

Answer 2

Step-by-step explanation:

Given AP=5,4 1/2,4,3 1/2,3....

a=5

d=4 1/2-5=-1/2

n=25th term

an=a+(n-1)d

a25=5+(25-1)-1/2

a25=5-24/2

a25=5-12

a25=-7

HOPE IT HELPS...