27=30 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...

27. Find the integral of 12 sin x cos' x dx if lower limit = 0 and upper limit = nt /2. A. 0.2 C. 0.6 B. 0.8 D. 0.4 28. Using lower limit = 0 and upper limit = 1/2, what is the integral of 15 sin x dx? A. 6.783 C. 6.648 B. 6.857 D. 6.539 29. Evaluate the integral of 3 (sin x)3 dx using lower limit of 0 and upper limit = pi/2. A. 2.0 C. 1.4 B. 1.7 D. 2.3 30. Evaluate the integral of 5 cos x sin x dx using lower limit = 0 and upper limit = nt/2. A. 0.5046 C. 0.6107 B. 0.3068 D. 0.4105