Question

rezultatul calculului 2/(2pe 3inchidem paranteza la 2plus11supra 5/11supra10 este egal cu.............

Answer 1

$2: ( \frac{2}{3} )^{2} + \frac{11}{5} : \frac{11}{10} = 2 : \frac{4}{9} + \frac{11}{5} * \frac{10}{11} = 2* \frac{9}{4} + \frac{10}{5} = \frac{18}{4} + 2 = \frac{9}{2} +2 (amplificam cu 2) =\frac{9}{2} + \frac{4}{2} = \frac{13}{2}$