find the an, of the following arithmetic sequence. -7, 4, 15, 26, ... a20
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find the an, of the following arithmetic sequence. -7, 4, 15, 26, ... a20
find the an, of the following arithmetic sequence. -7, 4, 15, 26, ... a20
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Answer:An = 11n -8
Step-by-step explanation: A1= -7 d= 11 an= ?
An=A1+(n-1)d
An= -7 + 11(n-1)
An= -7+ 11n-1
An=11n-8