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OpenStudy (anonymous):
I have six terms: 5,7,11,19,35,67, what is a1
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OpenStudy (solomonzelman):
What do you think?
OpenStudy (solomonzelman):
\[a1~~~~~usually~~written~~as~~a_1~~~is~~the~~first~~term~~of~~the~~sequence.\]
OpenStudy (anonymous):
a(some number goes here) represents a numbered place in the series
OpenStudy (solomonzelman):
\[A_2=A_1+(1\times 2)\]\[A_3=A_2+(2\times 2)\]\[A_4=A_3+(3\times 2)\]\[A_5=A_4+(4 \times 2)\]Do you see the pattern?
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