7. Determine all values of p for which the integrals 8. 9. 10. x"dx or xdx Are the following additivity formulas for infinite integrals valid: (a) [* f (x)dx = [* f (x)dx + ["f(x)dx+ [f(x)dx? (b) f(x)dx = -1 f(x)dx? -1 (c) [f(x)dx = (x)dx? Evaluate the following integral using properties of definite integrals and interpreting integrals as areas: (4x-2)dx Evaluate the following integral using properties of definite integrals and interpreting integrals as areas. (5-5+ du