A.\(y' = \frac{1}{{{x^4} + 4{x^3} - 3}}\).
B.\(y' = \frac{1}{{4{x^3} + 12{x^2}}}\).
C.\(y' = \frac{{4{x^3} + 12{x^2}}}{{{{\left( {{x^4} + 4{x^3} - 3} \right)}^2}}}\)
D.\(y' = \frac{{4{x^3} + 12{x^2}}}{{{x^4} + 4{x^3} - 3}}\).

A.\( - 3\sin x - \frac{{{2^x}}}{{\ln 2}} + C\) .
B.\(3\sin x - {2^x} + C\) .
C.\(3\sin x - \frac{{{2^x}}}{{\ln 2}} + C\) .
D.\(3\sin x - {2^x}\ln 2 + C\) .

A.\(\left( {0; - 1} \right).\)
B.\(\left( { - 5;0} \right).\)
C.\(\left( {4; - 1} \right).\)
D.\(\left( {0; - 5} \right).\)

A.2
B.1
C.3
D.4

A.\(1\).
B.\(0\).
C.\(3\)  .
D.\(2\)

A.\(\left( { - \infty ;1} \right)\).
B.\(\left( {3; + \infty } \right)\).
C.\(\left( {1; + \infty } \right)\) .
D.\(\left( { - \infty ;3} \right)\).

A.\(0\).
B.\(1\).
C.\( - 2\) .
D.\( - 1\) .

A.\(\left( { - 1; - 2} \right)\).
B.\(\left( { - 1;2} \right)\).
C.\(\left( {1;2} \right)\).
D.\(\left( {1; - 2} \right)\).

A.\( - \frac{1}{2}\)
B.2
C.\( - 3\)
D.\(\frac{3}{2}\)

A.\(3\)
B.\(5\)
C.\(2\)
D.\(4\).