Bonjour,
24)
a) (√5)²=√25=5
b) (7√5)²=7²√5²=49×√25=49×5=245
c) (-3√2)²=(-3)²√2²=9√4=9×2=18
d) (3√3)²=3²√3²=9×√9=9×3=27
25)
a) (10³)²=10³*²=10^6
b) (10-⁴)²=10-⁴*²=10^-8
c) (5²)²=5²*²=5⁴
d) (2⁴)²=2⁴*²=2^8
26)
a)
[tex]( \frac{3}{4} ) {}^{2} = \frac{3 {}^{2} }{4 {}^{2} } = \frac{9}{16} [/tex]
b)
[tex]( - \frac{9}{5} ) {}^{2} = \frac{ ( - 9) {}^{2} }{5 {}^{2} } = \frac{81}{25} [/tex]
c)
[tex]( \frac{15}{7} ) {}^{2} = \frac{15 {}^{2} }{ {7}^{2} } = \frac{225}{49} [/tex]
d)
[tex] (- \frac{1}{4} ) {}^{2} = \frac{( - 1) {}^{2} }{4 {}^{2} } = \frac{1}{16} [/tex]
Bonne soirée.
