Ответ:√(16,4²) = |16,4| = 16,4.√((-1,37)²) = |-1,37| = 1,37.¼√(84²) = ¼ · |84| = ¼ · 84 = 21.−2,6√((-5)²) = −2,6 · |-5| = −2,6 · 5 = −13.√(6⁴) = √(1296) = 36.√((-11)⁴) = √(14641) = 121.