log4(a2 + a) - log4(a + 1) = 2 হলে a এর মান কত?
Solution
Correct Answer: Option D
log4(a2 + a) - log4(a + 1) = 2
log4{(a2 + a)/(a + 1)} = 2
log4{a(a + 1)/(a + 1)} = 2
log4a = 2
a = 42
a = 16
log4{(a2 + a)/(a + 1)} = 2
log4{a(a + 1)/(a + 1)} = 2
log4a = 2
a = 42
a = 16
Practice More Questions on Our App!
Download our app for free and access thousands of MCQ questions with detailed solutions