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標題:
Find common term sHOW STEPS)
發問:
Find common term-1/2, 1/4, -1/8, 1/16 Find common term -3, 9, -27, 81
最佳解答:
Find common term-1/2, 1/4, -1/8, 1/16 First term : -1/2 Common ratio : (1/4) / (-1/2) = -1/2 General Term T(n) : -1/2 *(-1/2)^(n-1) = (-1/2) ^ n Find common term -3, 9, -27, 81 First term : -3 Common ratio : 9 / (-3) = -3 General Term T(n) : -3*(-3)^(N-1) = (-3)^n
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