Answers

2016-06-23T21:33:50+08:00
An=a1+(n-1)d a3=2+(3-1)d 32=2+2d 32-2=2d 30÷2=2d÷2 d=15 a2=2+(2-1)(15) a2=2+1(15) a2=2+15 a2=17 Simple as that.
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