Answer Happy

Calculate by changing to polar coordinates. ∫01​∫01−x2​​sin(x2+y2​)dydx a) 3π​sin(1)+3π​cos(1)−3π​ b) −πcos(1)+πsin(1) c) 32π​sin(1)+32π​cos(1)−32π​ d) −4π​cos(1)+4π​sin(1) e) −2π​cos(1)+2π​sin(1) f) None of these.