are three non-zero vectors; no two of them are parallel. If is collinear to and is collinear to , then is equal to
In tossing of a coin (m + n)(m > n) times, the probability of coming consecutive heads at least m times is
A.
Let' H' denote the head and any ofthemcome is 'A'. Suppose the sequence of m consecutive heads start with first throw, then
P[(HH ... m times)(1 . 1 ... n times)
Now, suppose the sequence of m consecutive heads start with second throw, the first must be a tail,
Similarly, as above
The differential equation of all circles touching the axis of y at origin and centre on the x-axis is given by
None of these