PAPER 1 4. INDICES AND SURDS N2014 page 25 (a) Solve the following simultaneous equations. 5* 25-2 = 1 27-1= 81 p) The diagram shows a triangle ABC such that AB = (2+ V3) cm, BC = (1+2/3) cm and AC= 2 cm. (2+ v3)cm 2 cm (1+ 2v3)cm Vithout using a calculator, find the value of cos A in the form a+bV3, where a and b are onstants to be found. STAEDTLER soft dust free

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