find value of n for 4 (32 n + 1) = 49
Answers
Answer: this is an eg not the answer 1.3(c). Clearly, rn > 1 for each n, so that from (b), rn+1 - rn and rn - rn-I have
opposite signs and
1
Irn+l - rnl < 41rn - rn-II·
Since r2 > 1 = rl, it follows that rl < r3 < r2. Suppose as an induction
hypothesis that
rl < r3 < ... < r2m-1 < r2m < ... < r2.
Then 0 < r2m - r2m+1 < r2m - r2m-1 and 0 < r2m+2 - r2m+1 < r2m - r2m+J.
so that r2m-1 < r2m+1 < r2m+2 < r2m. Let k, 1 be any positive integers. Then, for
m > k, I, r2k+1 < r2m-1 < r2m < r21.
l.3(d). Leta be the least upper bound (i.e., the smallest number at least as great as
all) of the numbers in the set {rl, r3, r5, ... , r2k+l, ... }. Then r2m-1 ::::: a ::::: r2m
Step-by-step explanation:
4(32n+1)=49
32n+1=49÷4
32n=49÷4-1
N=(49/4-1)find ans and divide by 3
Thus the final answer will be 3.75
Hope it helps you