Without expanding at any stage, find the value of:
Let A =
Applying R1 R1 + R3 and R2 R2 - R3
A =
As R1 = R2, we get
A = 0
Thus,
Find the approximate change in the volume ‘V’ of a cube of side x metres caused by decreasing the side by 1%.
In a race, the probabilities of A and B winning the race are and respectively. Find the probability of neither of them winning the race.