Here are pictures of the math questions I need answered! Thank you!
4. Without eliminating the parameter, do the following for the curve defined by 1 = sin 2t, y = cos 2t· . (a) Find dy and dry. (b) Evaluate andçat (c) Use the second derivative test to determine if the polar curve has a relative maximum, and at t = 0. dz2 minimum, or neither at the point where t 0ãJYA. 5. Find the length of the curve defined by r = 2 + 3t2, y 1 + 2A for 0-t-3. (Hint factor the radicand (inside the square root) so that a u-substitution will work.) 6. In the polar coordinate system provided (separately), plot each of the points whose polar coordinates are given. - 4, D-3, , B
