self
Maths Puzzle
The value of 1 + 1 + 1 is:
log3 60 log4 60 log5 60
A. 0 B. 1
C. 5 D. 60
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self Other Question
If log10 5 + log10 (5x + 1) = log10 (x + 5) + 1, then x is equal to:
A. 1 B. 3
C. 5 D. 10
If logx 9 = - 1 , then x is equal to:
16 2
A.
- 3
4
B.
3
4
C.
81
256
D.
256
81