Question

20"term of the progression 10.7.4 ..... will be​

Answer 1

Hey mate!!

here's your answer....

»A.P is - 10 ,7 ,4 .....

solution-

»suppose first term is a and common difference is d

a= 10

d= a2 - a1

= 7-10

= -3

»20th term =a20 = a+(n-1)d

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

=10+(19)(-3)

=10-57

=-47

$<marquee>★★Hope it will be helpful for you ☺️★★$

Answer 2

Hello!!

Here is the answer to your question!

20th term of AP :

Given AP: 10 , 7 , 4.........

Here:

a = 10

d = 7-10 = -3

So

an = a + ( n-1 ) x d

a20 = 10 + ( 20-1 ) x -3

• = 10 + ( 19 ) x -3
• = 10 + (-57)
• = -47

Hence: 20th term of the progression is -47.

Hope it helped!!