1003108709 Level: AWe are given an infinite geometric series: ∑n=1∞32n−1 . What is the value of its first term a1?33234123
1003108708 Level: AWe are given an infinite geometric series: ∑n=1∞(−12)n−1 . What is the value of its second term a2?−1211214−1
1003108707 Level: AWe are given an infinite geometric series: (5−3)+(5−15)+(55−53)+… . What is the value of its common ratio?55−35−3+55+55
1003108706 Level: AWe are given an infinite geometric series: 23−49+827−1681+… . What is the value of its common ratio?−232329−29427
1003108705 Level: AWe are given an infinite geometric series: 4+83+169+3227+… . What is the value of its common ratio?2313433234
1003108704 Level: AExpand the given sum by listing individual terms. ∑n=26(4n−5)3+7+11+15+19−1+3+7+11+154+8+12+16+203+8+11+15+198−5+12+16+20
1003108703 Level: AUse summation notation to express the given infinite series. 3x3+3x2+3x+3+3x+…∑n=1∞3⋅xn−4∑n=1∞3⋅xn−3∑n=1∞3⋅xn+3∑n=1∞3⋅xn+4∑n=1∞3⋅xn
1003108702 Level: AUse summation notation to express the given infinite series. −1+2−4+8−16+…∑n=1∞(−1)n⋅2n−1∑n=1∞(−1)n−1⋅2n−1∑n=1∞(−1)n+1⋅2n−1∑n=1∞(−1)n⋅2n+1∑n=1∞(−1)n⋅2n
1003108701 Level: AUse summation notation to express the given infinite series. 1+12+14+18+…∑n=1∞12n−1∑n=1∞12n∑n=1∞12n+1∑n=1∞122n∑n=1∞122n−1
9000073401 Level: BIn the following list identify the expression which equals 3.312―.3.3+∑n=1∞12⋅10−2n−13+∑n=1∞312⋅10−2n−13+∑n=1∞312⋅10−3n3.3+∑n=1∞12⋅10−3n