How many elements are in the set {18,21,24,27,30,33,36,...666}?
Answers
Answered by
0
Answer:
Step-by-step explanation:
a=18
d=3
so
666=18+(n-1)3
648=3n-3
651=3n
n=217
there are 217 terms
done by AP
Answered by
0
Answer:
Step-by-step explanation:
It forms an AP
a0 = 18
d = 3
an = 666
an = a0 + (n-1)d
666 = 18 + (n-1)3
222 = 6 + (n-1)
n = 217
Hope it helps
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