Post-UTME Mathematics 2019 Objective — Question 37
Question 37 of 50 from the Post-UTME Screening (Post-UTME) Mathematics 2019 Objective paper, with the correct answer and a full explanation.
Advertisement
If 2log₃y + log₃x² = 4, then y is
- A. 4 - log₃x
- B. 4/log₃x
- C. 4/x
- D. ±9/xCorrect
Explanation
log₃(x²y²) = 4 means x²y² = 3⁴ = 81, so y² = 81/x², giving y = ±9/x.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.