Justify that 214 is a term of an ap 3 ,6 ,9
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Answer:
yep
Step-by-step explanation:
a=3
d=a2-a1
d=6-3
d=3
an=a+(n-1)d
214=3+(n-1)3
214=3+3n-3
214=0+3n
3n=214+0=0
n=3
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