Nếu nghiệm của phương trình là r, thì log2(r+1)+1 = log2(3r-1). Điều này có đúng không?

Solution For The sum of all the roots of the equation log2​(x−1)+log2​(x+2)−log2​(3x−1)=log2​4. (y + 1) loga JM ^ (log2 ^ — 1/2) log2 jM. Since μ is the greatest integer less than or equal to ((7/9)Z")1/3, and ((7/9)iO1/3 > 14, we have μ >. (14/15)((7/9)iί ... 1 e2x. Page 2. Solve each exponential equation in Exercises 23-48. Express the solution set in terms of natural logarithms. Then use a calculator to abtain a ... 3) The answers will be posted in Canvas within one day after the exam. ... A) log2 ((x :21)3 ) +2Iog4(3x). C) log2 ((x :21)3) +log4(9x2). (. 9x4 ). B) log2 (x + 1) ... 2) a) Graph f(x)=3x-1. ... Solve log2x+log 2(x-1)= 1. Solution Using the first law, you obtain. - log 2x+log 2(x-1)= log(x(x 1)) = log2(x² - x), which gives. 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 ... The natural logarithm ln(x) is an antiderivative of 1/x, given by ln x ... 1 ≤ x ≤ 2, 2x ≤ y ≤ 3x}. 14. Find the average of the function f(x)=2x ... ... = 2(2x)2 = 2t2. 3x + 5 = 24 = 16 b 2t2 − 7t + 6 = 0 x = 11. 3. (2t − 3)(t − 2) = 0 b log2 (x + 1) + log2 (3x − 1) = 5 t = 2x = 3. 2. , 2. (x + 1)(3x − 1) = 25 = ... Observe that C = 12 and k = 1 from the definition of big-O. Example 2 Show that f(x)=(x + 5) log2(3x2 + 7) is O(x log2 x). 1 x=-2. 14. logg. 15. logs √5 X=1/2. 16. logg 3 X = ½. 17. log2 16 X=4. 18. log1/2 16 X=-4. 27 X=-3/2. Solve for x. 19. log6 x = 2. 20. log5 x = 3. 21. log16 x ...