Question

If the first term of an A.P. is -18 and its 10th term is zero, then find its common
difference​

Answer 1

Answer:

given

a10=0

a=18

d=?

Step-by-step explanation:

an=a+(n-1)d

a10=a+9d

0= -18+9d

9d=18

d=18÷9

d=2

Answer 2

Answer:

Galileo di Vincenzo Bonaiuti de' Galilei was an Italian astronomer, physicist and engineer, sometimes described as a polymath, from Pisa. Galileo has been called the "father of observational astronomy", the "father of modern physics", the "father of the scientific method", and the "father of modern science".