Question

20th term of Ap 10 7 4​

Answer 1

Answer:

Hloo mate here is your answer…………

here in this ap series 

a=first term =10

d=commondiff.= -3

n=no. Of term =20

so, Tn= nth term = ?

so,

using formula.…

Tn=a+(n-1)d

=10+(20-1)(-3)

=10+19(-3)

= 10 -57= -47

so the required 20th term of given AP is -47,

i hope this is helpful to you.………