Definite Integral and Volume of Parallelepiped Quiz
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Questions and Answers

Which of the following points lies on the curve E1?

  • (0, 2)
  • (2, 5)
  • (4, -6)
  • (3, 1) (correct)
  • What is the value of the definite integral $\int_{0}^{4\pi} (11 + 4 \cos^2 x + \cos^4 x) dx$?

  • 12 - 2 (correct)
  • -6
  • 6
  • 6 - π
  • In the arithmetic progression of natural numbers a1, a2, ..., an, what is the value of a6 if the volume of the parallelepiped formed by vectors a and c is 54?

  • 7
  • 2
  • 10
  • 5 (correct)
  • If P = [1 0 0; 4 1 0] and Q is such that q12 + q32 = P50 - Q, what is the sum of digits in q21?

    <p>6</p> Signup and view all the answers

    If b = ai + aj + ak and c = ai + aj + ak, what is the value of a such that volume of the parallelepiped formed by a, b, and c is 54?

    <p>7</p> Signup and view all the answers

    What is the point that does not lie on E2?

    <p>(3, 1)</p> Signup and view all the answers

    What is the value of $\lambda + \mu$ if the equation $y^2 + \lambda xy - \mu x^2 = 0$ represents lines through the origin parallel to lines dividing triangle ABC into three equal areas?

    <p>8</p> Signup and view all the answers

    What is the value of $p - q$ if the area enclosed by the curves $y = x$ and $x + y - 2 = 0$ is expressed as $\frac{p}{q}$?

    <p>3</p> Signup and view all the answers

    The curve satisfying the differential equation and passing through (2, 1) with eccentricity e is most likely a:

    <p>Hyperbola</p> Signup and view all the answers

    If $\lim_{n \to \infty} 2m[(n+1)(n+2)...(n+n)]^n = \frac{1}{8}$, then the value of 'a' in the expression is:

    <p>$\frac{1}{4}$</p> Signup and view all the answers

    If the distance of a plane from the origin that passes through (1,1,1) and is perpendicular to the line $\frac{x-1}{3} = \frac{y-1}{0} = \frac{z-1}{4}$ is $rac{p}{q}$, what is the value of $p-q$?

    <p>-1</p> Signup and view all the answers

    If the interval [0, 4] is divided into n equal sub-intervals by points $x_0, x_1, x_2, ..., x_{n-1} = 4$, what is the sum of all these sub-intervals?

    <p>$4(n-1)$</p> Signup and view all the answers

    What is the value of the limit lim Δx → ∞ ∑(x_i Δx) for i from 1 to n?

    <p>n</p> Signup and view all the answers

    For the function f(x) = xf(x) + (1 - x)f(-x) = x^2 + x + 1, what is the greatest real number M such that f(x) ≥ M for all real numbers x?

    <p>7</p> Signup and view all the answers

    In a trapezium ABCD with AB parallel to CD, AD perpendicular to AB, and AB = 3CD, what is the area of the circle tangent to all sides if its radius is r?

    <p>$\frac{8}{r}$</p> Signup and view all the answers

    How many values of x in the form 1/n, where n is a natural number, lie in the interval [1/15, 10] and satisfy the equation {x} + {2x} + ... + {12x} = 78x?

    <p>15</p> Signup and view all the answers

    In the expansion of (2x^2 + 3x + 4)^10 = ∑a_xr, what is the value of a_9?

    <p>$\binom{10}{9} \times 2^3 \times 3^7 \times 4^0$</p> Signup and view all the answers

    If a derivable function f: R+ → R satisfies f(xy) = f(x) + f(y) for all positive real numbers x, y, what is true about f?

    <p>$f(x) = kln(x)$ for some constant k.</p> Signup and view all the answers

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