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You are asked to evaluate the surface area of the triangular portion of the plane 2x + 5y - z = 6 in the first octant. If the projection is on the xy-plane, which of the following would be the integrand (function inside the double integral)? O None of these. O sqrt(29) 0 4x2 + 2592 + 1 O sqrt(30) O 1 O sqrt(8) O sqrt(7)To use a double integral to calculate the surface area of a surface z=f(x,y), what is the integrand to be used (what function goes inside the integral)? (ft)2 + (fy)2 +1 0 (m2 + (m3 0 (m2 + (is)? O ay) Finding the surface area of a surface is equivalent to finding the volume of the solid/region bounded by the surface. O True O FalseThe proof of the FToLl (Fundamental Theorem of Line Integrals) used which of the following? You may select one or more answers. Fundamental Theorem of Calculus Chain Rule for Multivariable Functions 0 Squeeze Theorem C] Green's Theorem [:1 Intermediate Value Theorem C] Absolute Value Theorem 0 Product Rule for derivatives