Mathematics
Grade10
Easy
Question
Write the first three terms of the Arithmetic Sequence, when the first term and common
a1 = -10 , d = 0
- -10 , 10 , 0
- -10 , -5 , 0
- -10 , -10 , -10
- None of the above
Hint:
The recursive formula of an arithmetic sequence is, an = an-1 + d.
The correct answer is: -10 , -10 , -10
We have to find the first three terms of an AP given that a1 = -10 and d = 0.
We have, a1 = -10.
a2 = a1 + d = -10+0 = -10.
a3 = a2 +d = -10+0 = -10.
Hence, the correct option is C.
We can also find the terms by using explicit formula.
