Solve for positive in the logarithmic equation: .
Answer and explanation
Correct answer: C. 3
- Step 1: Convert log form to exponential form: . Step 2. Solve for : . Step 3. Since for positive domain, . Answer: 3. Why not the others: 2 gives ; 4 gives .
Practise more Number, Numeration, Sets, Sequences and Algebra.
Free questions with an explanation for every one, and full timed Unified Tertiary Matriculation Examination mock tests.