Question

9.6-Find the 15th term of the AP:
y-7. y-2 y+3....​

Answer 1

Answer:

y+63

Step-by-step explanation:

t base n=a+(n-1) d

here a=y-7, n=15 , d=5

hence, t base15=(y-7) +(15-1)5

=y-7+(75-5)

=y-7+70

=y+63