If 8r4s=2t, then what is r in terms of s and t ?
A.s + t + 1
B.s + t + 5
C.(2s+t)3
D.2st3
E.(s2)+(t4)
我的答案:
If fff\(\frac{8^r}{4^s}=2^t\)/fff, then what is r in terms of s and t ?
C.fff\(\frac{(2s+t)}{3}\)/fff
D.fff\(\frac{2st}{3}\)/fff
E.fff\((\frac{s}{2})+(\frac{t}{4})\)/fff
(Official1-70可直接使用)
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