Solve the following exercises 1. Find the parametric equations 2. Calculate the double integral 3. Find the area using double integrals

6. Find the parametric equations for the line tangent to the intersection curve of the surfaces 3x2 + 2y? +z? = 49, x2 + y? - 2z? = 10 on the point (3, -3, 2) 7. Calculate 27 sin (x?) dady 8. Use a double integral to calculate the area of the region bounded by the x? + y? = 16 and y? = 6x