If a hyperbola passes through the point P(10, 16) and it has vertices at (±6, 0), then the equation of the normal at P is:

The number of primary, secondary, tertiary and quaternary carbon atoms in iso-octane is given by the set

Which of the following values of n are possible, if the middle term of (x + 3y)n is the fifth term

The value of n in the expansion of (a + b)n if the first three terms of the expansion are 729, 7290 and 30375, respectively is

In the binomial expansion of (a + b)n, the coefficient of fourth and thirteenth terms are equal to each other, then the value of n is