Réponse:
1) 3/4 * 3/4 * 3/4 * 3/4 * 3/4 = 243/1024
2) (-1)/2 * (-1/2) * (-1/2) = -1/8
3) a/7 * a/7 = [tex] \frac{a ^{2} }{7 ^{2} } [/tex] = [tex] \frac{a ^{2} }{49} [/tex]
4) -5/y * -5/y * -5/y = -125/y^3
5) b/c * b/c * b/c * b/c = [tex] \frac{b^{4} }{c^{4} } [/tex]
