Tìm cực trị của hàm số f(x).

x ≤ 3x + 7 ≤ 4x for all x > 7. b. [2pt] 2x2 + x − 7, x2 x2 < 2x2 + x − 7 ... [2pt] log10 x, log2 x. Follows from log10 x = C log2 x where C = 1/log2 10. Oct 19, 2003 ... f(x) = 1/x - (x-1). A graph of f(x) over the interval 0 ≤ x ≤ 4 is ... [F,E] = LOG2(X) for a real array X, returns an array F of real ... 52) 7 + 3x = 1 + x. Use the rational zero theorem to find all possible ... 76) 6 log2(6x - 1) + 4 log2 (5x - 4). Rewrite the expression as a sum or ... 1/47r- COS X + 1/3 cos 3x - 1/5 cos 5x +. COS X - 1/5 COS 5X + 1/7 cos 7x - I ... a2n 2-a+ 1 = 2n log2 2n' "2,+1 a2n+2 2n log2 2n sec 1/2 sec 1 sec 1 /4 ... even one iteration of the (3x + 1)-map. One sense in which Benford ... second we had M(x)=3x + 1 for x odd and x. 2 for x even (2, 402, 282 iterates) ... H(S) = 1 log2 1 = 0. Half class C, half class D? H(S) = 0.5 log2 0.5 0.5 ... And it makes sense that it takes log2 n bits to specify one of n classes when each. log3(x + 3)2 = log3(10x + 6). (x + 3)2 = 10x + 6 x2 + 6x + 9 − 10x − 6=0 x2 − 4x +3=0. (x − 3)(x − 1) = 0 x = 3 x = 1. Question 21(e) log2(x + 1) + log8(x +1)=4. C(m) log2 log2 log2 x log2 log2 x. + log2 log2 x. , (1.4) for some constant C ... where, for x 1, g(x)=wxx& : i=1 \ x bi &1. (2.2). It easily follows [3 ... 3x x≤3x is true for all x>0. 3x + 7 ≤? 3x + x. 7 ≤ x is true when x ... d) Show that log2(x2 + 1) is θ(log2(x)). Let f = log2(x2 +1) and g= log2(x). ... (x) 5 3x for 0 # x # 3 and locate the pairs as ... 47. In 48–53, solve each equation for the variable. 48. log2 23 1 log2 22 5 log2 x. 49. log2 16 1 log2 2 5 log2 ...