$\int e^{3x} \sin(4x-5) dx = $ . . . . . . $+ C$

  • A
    $\frac{e^{3x}}{25}[3 \cos(4x-5) - 4 \sin(4x-5)]$
  • B
    $\frac{e^{3x}}{25}[3 \sin(4x-5) + 4 \cos(4x-5)]$
  • C
    $\frac{e^{3x}}{25}[3 \sin(4x-5) - 4 \cos(4x-5)]$
  • D
    $\frac{e^{3x}}{25}[4 \sin(4x-5) - 3 \cos(4x-5)]$

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$\begin{aligned} & \text{જો } 5(f(x))^2 = x f(x) + 30 \text{ અને } \\ & \int \frac{3 x^3 + (1 - 30 x^2) f(x)}{(10 f(x) - x)(x^3 - f(x))^2} dx \\ & = \frac{A}{B x^3 + D f(x)} + C, \text{ તો } A + B + D = \end{aligned}$

$-1 < x, y < 1$ માટે, જો $\int \frac{x}{\sqrt{1+x}+\sqrt{1-x}} dx + \int \frac{y}{\sqrt{y+1}+\sqrt{y-1}} dy = A(1+x)^{3/2} + B(1-x)^{3/2} + f(y)(y+1)^{3/2} + g(y)(y-1)^{3/2} + C$ હોય, તો $A f(y) + B g(y) =$

જો $n$ એ $1$ કરતા મોટી ધન પૂર્ણાંક સંખ્યા હોય અને $I_{n}=\int \frac{\sin n x}{\sin x} d x$ હોય, તો $I_{n+1}-I_{n-1}=$

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