Evaluate .
Answer and explanation
Correct answer: C. 1
- Step 1: and .
- Step 2: The difference is .
Answer
1.
Why not the others: 7: the logarithms were added instead of subtracted. 73: the arguments were subtracted without taking logarithms. -1: the order of the subtraction was reversed.
Practise more Probability, sequences and logarithms.
Free questions with an explanation for every one, and full timed Wazari Exam (Iraq Baccalaureate) - Scientific Branch mock tests.
More Probability, sequences and logarithms questions
- Find the coefficient of in the expansion of .
- A fair coin is tossed 5 times. What is the probability of exactly 2 heads?
- A fair coin is tossed 6 times. What is the probability of exactly 3 heads?
- A fair coin is tossed 8 times. What is the probability of exactly 4 heads?
- A fair coin is tossed 7 times. What is the probability of exactly 5 heads?
- A fair coin is tossed 10 times. What is the probability of exactly 3 heads?