Question

Q1.A bag contains 4 red balls and some white balls with quality for drawing a red ball from the bag is 2 by 5 find the number of white balls in the bag.
Q2. Is -3 and 2 are roots of the quadratic equation X square minus bracket Nikki + 2 into x minus 2 equals to zero then find the values of P and Q.
Q3. If sin theta minus cos theta equals to zero then find the value of sin 4 theta + cos 4 theta.
Q4. BA and PB are two tangents drawn from an external point P to a circle with Centre c and radius 4 centimetre if pa perpendicular P B then find the length of each tangent.
Q5 prove that n square minus n is divisible by 2 for any positive integer n.
Q6. If MX + NY = m2 - n2 and nx + my =0, find the value of x+y.

Answer 1

Q1=12White balls......