Do Not explain just give answer. Finish quick please.

19. Determine the derivative dy dx for y = since2*) a. dy = e2* cos(e"* ) C. = 2x cos(@27 ) dx dx b. dy d. dx = 2 cos(e2* ) dy dx = 2e* cos(e27 ) 20. Determine the derivative - for y = 10tan(2x + 9). a. C. -= 10 sec (2x + 9) dy = 20 tan(2x + 9) dx dx b. dy d. dy = 20 sec (2x + 9) dx = (20x + 90) tan(2x + 9) dx 21. A vector is: a. a quantity whose magnitude can be completely specified by a number b. a quantity that represents magnitude only c. a mathematical quantity with magnitude and direction d. a quantity that represents a direction only