7-10 please help please... this is just our review... no need for solution please. answer directly only.... please... IN RETURN I WILL GIVE HELPFUL RATING DIRECTLY...

7. Evaluate: 4dx 3x+2 A. 4In(3x + 2) + C C. = In (3x + 2) + C B. #In(3x + 2) + C D. 2 In (3x + 2) + C 8. Evaluate the integral of ex +1 2xdx. ex- +1 A. + C In 2 C. ex2+1 + C B. e2x + C D. 2xex 9. What is the integral of cosaxe sin 2x dx? A. -esin 2x + C C. esin 2x + C B. esin 2x / 2 + C D. - esin 2x / 2 + C 10. The integral of cos x with respect to x; f cos x dx = A. secx + c C. cos x + c B. sin x + c D. - sin x + c