Question

30 term of an ap is 10,7,4.....​

Answer 1

Answer:

-77

Step-by-step explanation:

Here d = -3, a = 10 and n = 30.

30th term = 10 + 29(-3)

= 10 - 87

30th term = -77

Answer 2

Answer:

(-77)

Step-by-step explanation:

a=10;n=30

The common diff d=t2-t1

d = 7-10

d = -3

By AP formula

tn=a+(n-1)d

t30=10+(29)(-3)

t30=10-87

t30= -77