Question

Find the 10th term from the end of Ap -11,-8,-5,..49

Answer 1

Answer:On reversing the same A.P we get

49,45, 42.......-5,-8, -11

so our

a=49

d=a2-a1=45-49= --4

we need to find a10 so a10= a + 9d= 49+9(-4)

a10 = 49-36

a10 = 15

the 10 th from end is 15

i hope this helped you

Step-by-step explanation:

Answer 2

L=49,d=3
L10=L-(n-1)d
L10=49-(10-1)3
L10=49-27
L10=22