Q. h(n)=63⋅(−31)nComplete the recursive formula of h(n).h(1)=□h(n)=h(n−1)⋅□
Given Explicit Formula: We are given the explicit formula for the sequence h(n) as h(n)=63⋅(−31)n. To find the recursive formula, we need to express h(n) in terms of h(n−1).
Find h(1): First, let's find h(1) by substituting n=1 into the explicit formula:h(1)=63×(−31)1=63×(−31)=−21.This gives us the initial condition for the recursive formula.
Express h(n) in terms of h(n−1): Now, let's find h(n) in terms of h(n−1). We know that h(n)=63×(−31)n. We can express h(n−1) similarly:h(n−1)=63×(−31)n−1.
Divide h(n) by h(n−1): To find the relationship between h(n) and h(n−1), we can divide h(n) by h(n−1):h(n−1)h(n)=63⋅(−31)n−163⋅(−31)n.
Simplify the Equation: Simplify the right side of the equation by canceling out common factors and simplifying the powers of −31:h(n−1)h(n)=(−31)n/(−31)n−1=−31.
Express h(n) in terms of h(n−1): Now we can express h(n) in terms of h(n−1):h(n)=h(n−1)×−(31).This is the recursive formula for the sequence.
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