Exercice 150 :
[tex]A= 5\times2^{-1} -3^{-2} \\A= \frac{5}{2} - \frac{1}{9} \\A = \frac{45-2}{18} \\A = \frac{43}{18}[/tex]
[tex]B= 3\times (1-3)^{5} - 2^2\times( 3: 2)\\B=3\times(-2)^5 -4 \times \frac{3}{2} \\B=3\times ( -32) -2 \times3\\B= -96 - 6\\B=-102[/tex]
[tex]C= \frac{(5-2\times3)^4}{(2-3)^5} \\C = \frac{(-1)^4}{(-1)^5}\\ C =\frac{1}{-1}\\ C=-1[/tex]
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Exercice 150 :
[tex]A= 5\times2^{-1} -3^{-2} \\A= \frac{5}{2} - \frac{1}{9} \\A = \frac{45-2}{18} \\A = \frac{43}{18}[/tex]
[tex]B= 3\times (1-3)^{5} - 2^2\times( 3: 2)\\B=3\times(-2)^5 -4 \times \frac{3}{2} \\B=3\times ( -32) -2 \times3\\B= -96 - 6\\B=-102[/tex]
[tex]C= \frac{(5-2\times3)^4}{(2-3)^5} \\C = \frac{(-1)^4}{(-1)^5}\\ C =\frac{1}{-1}\\ C=-1[/tex]