Mathematics Past Questions and Answers

From the top of a cliff, the angle of depression of

a boat on the sea is 60^o, if the top of the cliff is

25m above the sea level, calculate the horizontal

distance from the bottom of the cliff to the boat.

The angle of elevation of the top of a tree 39m

away from a point on the ground is 30^o. Find the height of the tree

In the diagram above, ATR is a tangent at the point T to the circle center O, if ∠TOB = 145°, find ∠TAO

P={2, 1,3, 9, 1/2}; Q = {1,21/2,3, 7} and R = {5, 4, 21/2}. Find P∪Q∪R

P = {2, 1,3, 9, 1/2}; Q = {1,21/2,3, 7} and R = {5, 4, 21/2}. Find P∩Q∩R