MA 138 Midterm: MA 138 UKY Answer Key Exam 1 S12

11. Evaluate the following integral. 2 Rewrite the given integral in a form that does not involve a power of sine. Choose the correct answer below 14 14 O A. 14 14 14 2 2 14 14 O E 2 2 2 14 14

Identify the symmetries of the curve r = 7 + 7 cos θ. Then sketch the curve. Is the curve symmetric about the x-axis? ○No O Yes Is the curve symmetric about the y-axis? O No O Yes Is the curve symmetric about the origin? O No O Yes Identify the sketch that shows the curve r-7+7 cos 0. ○ A. O B. OC. O D. 14 14 Click to select your answer

Identify the sketch that shows the curve r= 7 + 7 cos 0. OA. OB. O C. OD. 14- 14- 14 14 14 14 -14 14 14

Check if this math is correct? SplitInfo_A(D) = -4/14 times log_2(4/14) - 6/14 times log_2(6/14) - 4/14 times log_2(4/14). = 0.926.