Question 648819
First term:


An=2n-3


A1=2(1)-3


A1=2-3


A1=<font color="red">-1</font>


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Second term:


An=2n-3


A2=2(2)-3


A2=4-3


A2=<font color="red">1</font>


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50th term:


An=2n-3


A50=2(50)-3


A50=100-3


A50=<font color="red">97</font>


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