, . Then, , when,
I. ; II. ; III. ; IV. .
Tap an option to check your answer.
1 mark, −0.33MathematicsQuantitative aptitude and data reasoningExponents and logarithmsEasyabout 1 min
UoH 2021 Question 18: Quantitative aptitude and data reasoning
Answer and worked solution
Checking your account…
Plain-text version
f(x) = log (x² - 3), x > √3. Then, f(x) = 0, when, I. x = -√3; II. x = +2; III. x = +√3; IV. x = -2. (A) I and III (B) III (C) II and IV (D) II
Also written as: f(x) = log (x^2 - 3), x > sqrt(3). Then, f(x) = 0, when, I. x = -sqrt(3); II. x = +2; III. x = +sqrt(3); IV. x = -2.
Quantitative aptitude and data reasoning has come up 92 times in 6 exams since 2008.
What this question tests
This question is on Exponents and logarithms, part of Quantitative aptitude and data reasoning in Mathematics.
Laws of exponents and logarithms and equations that use them.
TestStop has 13 past-paper questions on this subtopic.
Similar questions from other papers
- Match the Corresponding Equations LIST-I with Solutions LIST-II. LIST-I (Equation): A. 5x² = 0 B. 2x² - 32 = 0 C. 2x² + 32 = 0 D. 2x² - 32x = 0. LIST-II (Solution): I.…
- Assuming x is a whole number greater than or equal to 2, arrange the following four in decreasing order, with the largest first and smallest last: (A) 1/x (B) 1/x² (C)…
- Arrange the following expressions in terms of increasing order of magnitude [given: a>0, b>0, x>0 ]: (A) y=e^a (B) y=e^(a+bx) (C) y=e^(a+b/x) (D) y=e^(a-b/x) (E)…
- Let 2z=-3+√3 i, i=√(-1). Then 2z⁸ is equal to
- Let k ∈ ℝ. Which of the following is/are correct for the roots of x² + 2(k+1)x + 9k - 5 = 0?
Question from the UoH 2021 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.