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31 Dec 2017
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=
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=
Keith LeannonLv2
2 Jan 2018
