Class XII Maths Exercise 7

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Questions and Answers

What is the antiderivative of $cos 3x$?

  • $3cos 3x + C$
  • $\frac{1}{3}cos 3x + C$
  • $\frac{1}{3}sin 3x + C$ (correct)
  • $3sin 3x + C$

What is the antiderivative of $sin 2x$?

  • $2sin 2x + C$
  • $2cos 2x + C$
  • $-\frac{1}{2}cos 2x + C$ (correct)
  • $-\frac{1}{2}sin 2x + C$

What is the antiderivative of $2x$?

  • $x^2 + 1 + C$
  • $2x^2 + C$
  • $x^2 + C$
  • $x^2 + Cx$ (correct)

What is the antiderivative of $e^{2x}$?

<p>$e^{2x} + C$ (A)</p> Signup and view all the answers

Find the antiderivative of $sin(2x)$.

<p>The antiderivative of $sin(2x)$ is $-rac{1}{2}cos(2x) + C$, where $C$ is the constant of integration.</p> Signup and view all the answers

What is the antiderivative of $3x^2$?

<p>$x^3 + C$ (B)</p> Signup and view all the answers

What is the antiderivative of $cos(3x)$?

<p>The antiderivative of $cos(3x)$ is $rac{1}{3}sin(3x) + C$, where $C$ is the constant of integration.</p> Signup and view all the answers

Determine the antiderivative of $e^{2x}$.

<p>The antiderivative of $e^{2x}$ is $rac{1}{2}e^{2x} + C$, where $C$ is the constant of integration.</p> Signup and view all the answers

What is the antiderivative of $f(x)$?

<p>The antiderivative of $f(x)$ cannot be determined without knowing the function $f(x)$. Therefore, the antiderivative of $f(x)$ cannot be found.</p> Signup and view all the answers

Calculate the antiderivative of $g(x)$.

<p>The antiderivative of $g(x)$ cannot be determined without knowing the function $g(x)$. Therefore, the antiderivative of $g(x)$ cannot be found.</p> Signup and view all the answers

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Study Notes

Antiderivatives of Trigonometric Functions

  • The antiderivative of $cos 3x$ is $(1/3)sin 3x + C$.
  • The antiderivative of $sin 2x$ is $(-1/2)cos 2x + C$.
  • The antiderivative of $sin(2x)$ is $(-1/2)cos(2x) + C$.
  • The antiderivative of $cos(3x)$ is $(1/3)sin(3x) + C$.

Antiderivatives of Algebraic Functions

  • The antiderivative of $2x$ is $x^2 + C$.
  • The antiderivative of $3x^2$ is $x^3 + C$.

Antiderivatives of Exponential Functions

  • The antiderivative of $e^{2x}$ is $(1/2)e^{2x} + C$.

General Antiderivatives

  • The antiderivative of $f(x)$ is $F(x) + C$, where $F'(x) = f(x)$.
  • The antiderivative of $g(x)$ is $G(x) + C$, where $G'(x) = g(x)$.

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