Ответ:√(19,8²) = |19,8| = 19,8.√((-1,26)²) = |−1,26| = 1,26.1/5 · √(65²) = 65/5 = 13.−1,2 · √((-7)²) = −1,2 · 7 = −8,4.√(5⁴) = √(625) = 25.√((-19)⁴) = √(19⁴) = 19² = 361.