A.\(\int {f\left( x \right)dx} = \dfrac{1}{3}\cos 3x + C\)B.\(\int {f\left( x \right)dx} = - \dfrac{1}{3}\cos 3x + C\)C.\(\int {f\left( x \right)dx} = 3\cos 3x + C\)D.\(\int {f\left( x \right)dx} = - \cos 3x + C\)
A.\(3\)B.\(\dfrac{4}{9}\)C.\(9\)D.\(\dfrac{1}{3}\)
A.\(32\)B.\(9\)C.\(16\)D.\(4\)
A.\(\overline z = 4 - 2i\)B.\(\overline z = 4 + 2i\)C.\(\overline z = - 2 + 4i\)D.\(\overline z = 2 + 4i\)
A.\( - 12\)B.\( - 4\)C.\( - 8\)D.\(8\)
A.\(y = {x^3} - 3x + 2\)B.\(y = - {x^4} + 2{x^2} - 2\)C.\(y = - {x^3} + 3{x^2} + 2\)D.\(y = {x^3} - 3{x^2} + 2\)
A.downB.onC.asideD.out
A.dedicatedB.givenC.devotedD.sacrificed
A.were studyingB.have been studyingC.had been studyingD.are studying
A.The less you studyB.The more you studyC.The most you studyD.The more and more you study
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