Related InterviewSolutions

• Let PQ be a focal chord of y2=4ax. The tangents to parabola at P and Q meet at a point lying on the line y=2x+a (a>0). Length of PQ(in units) is :
• The direction cosines of the line drawn from P(–5, 3, 1) to Q(1, 5, –2) is
• The number of integral values of a such that the quadratic equation 4ax2+5x+a=0 has two distinct real roots x1 and x2, satisfying the inequality |x1−x2|<1, is
• A number of five digits is formed with the digits 0, 1, 2, 3, 4 without repetition. The probability that it is a number divisible by 4 is:
• The number of all three element subsets of the set {a1,a2,a3⋯,an} which contain a3 is:
• Let a, b, c be the sides of a triangle. The least value of expressionE=ab+c−a+bc+a−b+ca+b−c is ___
• The average of msin(m∘) where m=2,4,6,⋯,180 is equal to (correct answer + 1, wrong answer - 0.25)
• Semi latus rectum of the parabola y2=4ax, is the _____ mean between segments of any focal chord of the parabola.
• 15 identical jewels are to be distributed between P,Q,R and S. Find the number of ways in which each one of them gets at least one.
• If A={x:x is a letter in the word 'QUARANTINE'}, then the cardinality of A is