Q 2 Exercise 4.2 Ch-4 Quadratic equations

Q4 exercise- 2.1

Q5 exercise- 2.1

Q6, exercise- 2.1

Q7, exercise- 2.1

If alphaandbeta be the roots of the quadratic equation x^(2)+px+q=0 , then find the quadratic equation whose roots are (alpha-beta)^(2)and(alpha+beta)^(2) .

Find the roots of the quadratic equations by applying the quadratic formula. (i) 2x^2 -7x+3 =0 (ii) 2x^2+x-4 =0 (iii) 4x^2+4sqrt3x+3=0 (iv) 2x^2+x+4 = 0

If 2 is a root of the quadratic equation 3x^2+p x-8=0 and the quadratic equation 4x^2-2p x+k=0 has equal roots, find the value of kdot

If p and q are roots of the quadratic equation x^(2) + mx + m^(2) + a = 0 , then the value of p^(2) + q^(2) + pq , is

If tan A and tan B are the roots of the quadratic equation x^2-px + q =0 then value of sin^2(A+B)

Find the roots of the quadratic equations (if they exist) by the method of completing the square. 4x^2+4sqrt(3)x+3=0