Ответы на вопрос:
3/16 : 0,25 + 6 = 5,25 1) - 3/16 : 1/4 = - 3/16 * 4 = - 3/4 = - 0,75 2) - 0,75 + 6 = 6 - 0,75 = 5,25 2 1/2 * 2/5 + 3/5 : 5/6 - 1 : 1 1/9 = 41/50 1) 2 1/2 * 2/5 = 5/2 * 2/5 = 1 2) 3/5 : 5/6 = 3/5 * 6/5 = 18/25 3) 1 : 1 1/9 = 1 : 10/9 = 1 * 9/10 = 9/10 4) 1 + 18/25 = 1 18/25 5) 1 18/25 - 9/10 = 1 36/50 - 45/50 = 86/50 - 45/50 = 41/50 = 0,82
2-√2/√6-√3=(2-√2)·(√6+√3)/(√6-√3)·(√6+√3)= ( 2 √6+2√3-√12-√6)/(√6²-√3²)=√6/3 x²-2/√2x+2=(x-√2)·(x+√2)/√2(x+√2)=(x-√2)/√2=(x√2-2)/2
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