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Find the first six terms of the sequence.

a1 = -7, an = 4 • an-1

User Mith
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2 Answers

3 votes
Answer:
a1= -7
a2=4 • -7= -28
a3=4 • -28= -112
a4=4
• -112= -448
a5=4
• -448= -1792
a6=4
• -1792= -7168
User Daniel Sixl
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3 votes
a1 = -7

an = 4 * an-1

a2 = 4 * a(2-1) = 4 * a1 = 4 * -7 = -28
a3 = 4 * a(3-1) = 4 * a2 = 4 * -28 = -112
a4 = 4 * a(4-1) = 4 * a3 = 4 * -112 = -448
a5 = 4 * a(5-1) = 4 * a4 = 4 * -448 = -1,792
a6 = 4 * a(6-1) = 4 * a5 = 4 * -1792 = -7,168

User Peng He
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