exam Maths Puzzle Numerical Ability

What are the possible answers?
sin(x) - sin(3x) = 0

Read Solution (Total 0)

exam Other Question

The sum of two numbers is 51 and their difference is 13. Find each of the numbers. A sample of 4 different calculators is randomly selected from a group containing 16 that are defective and 30 that have no defects. What is the probability that at least one of the 4 calculators in the sample is defective?