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(2 marks) A8. Which of the following integrals equals to : In (+ x2) dr A: Sin (ra) dr B: [" in (1 + x2) dx D: [** in (8 + x) dx E: 2/" Ine der
2 marks A22. If f" () = sin(2x), f(0) = 1 and f() = 0, then f(x) = 1: -sin(2) B: - sin(2) + 1 c. = sin(20) – 3D: -sin(21) – + 1 E: - sin(2x)
2 marks A9. If f(x) = (2.c)COST, then f'(x) = / COST A: 2- (2x)-sinz B: -2 sin : C: (2.) 03 (Cost-sin r ln(2.c) D: (21)«»= (cos z · ln(21) – sin ) E: 2-sin=
