exam Maths Puzzle Numerical Ability

I need a proof for the HL theorem.

Read Solution (Total 0)

exam Other Question

the frequency(F) of vibration of a string varies inversely with the length(L). knowing that a rope 15 cm long vibrates at a frequency of 128 v/s, what would be the length of a string vibrates at 192 v/s? Two sides of a triangle are 12 and 15 cm long. Which measurement can be the length of the third side?