Complete the square in the denominator, make the appropriate substitution, and integrate. 3 5. dx x2+4x+29www Evaluate the first integral as a sum of two integrals. 4x+11 4x+8 3 6. dx= - dx+ J dx x2+4x+5 x2 +4x+5 x+4x+52 7. Evaluate the integralfelt cos(3t) dt. 8. Use the tube method to calculate the volume when the region between the x-axis and the graph of y = sin(x) for 0