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If p, q, r, s are real number and pr = 2(q + s) then for the equation x2 + px + q = 0 and x2 + rx + s = 0 which of the following statement is true?
Concept: undefined >> undefined
If `f(x) = log [e^x ((3 - x)/(3 + x))^(1/3)]`, then `f^'(1)` is equal to
Concept: undefined >> undefined
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The solution of the differential equation `(1 + e^(x/y)) dx + e^(x/y) (1 + x/y) dy` = 0 is
Concept: undefined >> undefined
Given f(x) = `log((1 + x)/(1 - x))` and g(x) = `(3x + x^3)/(1 + 3x^2)`, then fog(x) equals
Concept: undefined >> undefined
An ellipse has OB as semi-minor axis, F and F' its focii and the angle FBF' is a right angle. Then the eccentricity of the ellipse is
Concept: undefined >> undefined
Matrices A and B will be inverse of each other only if
Concept: undefined >> undefined
Adjoint of each of the matrices `[(1, 2),(3, 4)]` is
Concept: undefined >> undefined
Find the inverse of the matrices `[(-1, 5),(-3, 2)]`
Concept: undefined >> undefined
Let A be nonsingular square matrix of order 3 × 3 Then |adj A| is equal to.
Concept: undefined >> undefined
If 'A' is an invertible matrix of order 2, then det (A-1) is equal to.
Concept: undefined >> undefined
The value of `int_(- pi/2)^(pi/2) (x^3 + x cos x + tan^5x + 1) dx` is
Concept: undefined >> undefined
The value of `int_0^(pi/2) log ((4 + 3 sin x)/(4 + 3 cos x)) dx` is
Concept: undefined >> undefined
A homogeneous differential equation of the `(dx)/(dy) = h(x/y)` can be solved by making the substitution.
Concept: undefined >> undefined
Find the unit vector in the diret:tion of the vector `veca = hati + hatj + 2hatk`
Concept: undefined >> undefined
What is the midpoint of the vector joining the point P(2, 3, 4) and Q(4, 1, –2)?
Concept: undefined >> undefined
Let E1 and E2 be two independent events. Let P(E) denotes the probability of the occurrence of the event E. Further, let E'1 and E'2 denote the complements of E1 and E2, respectively. If P(E'1 ∩ E2) = `2/15` and P(E1 ∩ E'2) = `1/6`, then P(E1) is
Concept: undefined >> undefined
If A, B are two events such that `1/8 ≤ P(A ∩ B) ≤ 3/8` then
Concept: undefined >> undefined
Find the equation of line parallel to the y-axis and drawn through the point of intersection of x – 4y + 1 = 0 and 2x + y – 7 = 0.
Concept: undefined >> undefined
ABCD be a parallelogram and M be the point of intersection of the diagonals, if O is any point, then OA + OB + OC + OD is equal to
Concept: undefined >> undefined
The equation of straight line through the intersection of the lines x – 2y = 1 and x + 3y = 2 and parallel to 3x + 4y = 0 is
Concept: undefined >> undefined
