Question

упростить вычислите a]√ [√ 2+1]^1- √ [1-√ 2]^2 б]√ [√ 13-√ 11]^2 + √ [√ 13+√ 11]^2

Answer 1

|√2+1|-|1-√2|=√2+1+1-√2=2
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|√13-√11|+|√13+√11|=√13-√11+√13+√11=2√13