Mathematics questions
18011 published questions with worked solutions.
- If and are the roots of x^2+5x+4=0, then the equation whose roots are +2 3, +2 3 is
- If one root of the equation x^2+px+q=0 is 2+ 3, then the value of p and q respectively
- If the sum of the roots of the quadratic equation ax^2+bx+c=0 is equal to the sum of the square of their reciprocals, then ac, ba...
- The , are the roots of the equation x^2+ax+b=0, then 1 ^2 + 1 ^2 is equal to
- If the roots of the equation x^2+px+q=0 are 30^ and 15^ respectively, then the value of 2+q-p is
- For the equation 1 x+a - 1 x+b = 1 x+c , if the product of the roots is zero, then the sum of the roots is
- If , be the roots of x^2-a(x-1)+b=0, then the value of 1 ^2-a + 1 ^2-a + 2 a+b is
- If , , are the roots of the equation x^3+4x-1=0, then ( + )^ -1 +( + )^ -1 +( + )^ -1 is equal to
- If one root of the equation lx^2+mx+n=0 is - 92 (l, m and n are positive integers) and m 4n = lm, then l+n is equal to
- E_1: a+b+c=0, if 1 is a root of ax^2+bx+c=0, E_2: b^2-a^2=2ac, if , are the roots of ax^2+bx+c=0. Which of the following is true?
- If , are the roots of the equation (x-a)(x-b)=5, then the roots of the equation (x- )(x- )+5=0 are
- The polynomial (ax^2+bx+c ) (ax^2-dx-c ), ac 0 has
- If (x-2) is a common factor of the expressions x^2+ax+b and x^2+cx+d, then b-d c-a is equal to
- If the equation (a+1)x^2-(a+2)x+(a+3)=0 has roots equal in magnitude but opposite in sign, then the roots of the equation are
- The number of real roots of f(x)=0, where f(x)=(x-1)(x-2)(x-3)(x-4) lying in the interval (1,3) is
- The roots of the equation (q-r)x^2+(r-p)x+(p-q)=0 are
- If the cube root of unity are 1, , ^2, then the roots of the equation (x-1)^3+8=0, are
- The maximum number of real roots of the equation x^ 2n -1=0 is
- If b^2 4ac for the equation ax^4+bx^2+c=0, then all the roots of the equation will be real positive of
- The number of real solution of the equation ( 9 10 )^x=-3+x-x^2 is