48等于根号几

48等于根号几 根号48等于几? 根号48等于几根号几, 根号48开方等于几 根号27乘根号48除以根号3 等于几 根号40等于根号几 根号45等于根号几 根号2等于几? 根号36等于几? 根号3.5等于几 根号1等于几? 根号16等于几? 根号7等于几? 根号42等于几? 根号-1等于几 根号5等于几? 根号18等于几? 根号9等于几?