2. use the variable. u for the inside express each of the following as a function. a) y (4 + ²-3) 5 u(t)= усије b.) p = 7e P=72-0.87 u(t)= РСиЈ function to Composite c.) = 61.n(₂²³+7) uliali ссид =

ry² dz dr dy. 3. Evaluate

Differentiate.

Use one of the formulas in the equation A = fe x dy = fc-y dx = 1/2 fex dy - y dx to calculate the area of the triangle with vertices (0, 0), (3, 0), (3, 3). (Use symbolic notation and fractions where needed.) A = 10000552 2003