laura-harris_60c0c6b2ac683
laura-harris_60c0c6b2ac683
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1. -√(1/121) 121 = 11², so this is -√(1/11²) = -√(1/11)² = -1/11. 2. √50/9 50 = 25*2 = 5²*2, and 9 = 3², so this is √((5²*2)/(3²)) = (5/3)√2. (This assumes that the positive root is the default. In full, it's ±(5/3)√2.) 3. -2√10*√8 √10…