Problem #1 (20 points) there is symmetric plane figure that is convicted between two curves: y) a (x) 2-x, where k is a positive parameter. caloulate the value of k for which the and area of the figure is equal to s. round-off your numerical resuit for k to four igures provide it below (20 points): (your numerieal result must be written here) problem #2 (20 points) use spherical coordinates to evaluate the numerical value of the triple integral where b is the ball with center in the origin and radius 2. round-off your numerical result to four figures and present it below (20 points): (your numerical result must be written here) problem #3 (20 points) evaluate the line integral on a plain as follows: where the closed contour c consists of two parts: 1) the arc of the parabola x 4 y2 from the point (-5, -3) to the point (0, 2 segmient of a straight ine from (0,2 round-off your numerical result for the value of the line integral to four figure present it below (20 points): (your numerical result must be written here