Question

Find 30th term of an AP 10, 7, 4, 1,.......

Answer 1

you can see your answer

Answer 2

Answer :

➾ $\sf\:a_{30} = - 77$

Step-by-step explanation :

Given :

♢ First term (a) = 10

♢ Common difference (d) = 2nd - 1st terms = 7 - 10 = - 3

To find :

➾ 30th term of A.P

Solution :

☆ $\boxed {\sf {a_{n} = a + (n - 1)d}}$

➾ $\sf\: a_{30} = 10 + (30 - 1)(-3)$

➾ $\sf\: a_{30} = 10 + 29 (-3)$

➾ $\sf\: a_{30} = 10 - 87$

➾ $\large\bf\: a_{30} = - 77$