Question

Assinale as alternativas falsas.

a) [(+5) - (-3) ²]=16

b) [(-11) ²-(-12)²]¹=0

c) [(-21)-(-21) ]=1.

d) [(+5)³] ²=(-5)

me ajudem prfvr preciso entregar​

Answer 1

Resposta:

Explicação passo a passo:

a) [(+5) - (-3) ²]=16

(F)

+5-(9)

= 5 - 9

= - 4

________________

b) [(-11) ²-(-12)²]¹=0

(F)

= [121 - (144)]^1

= [121-144]^1

= (-23)^1

= - 23

_______________

c) [(-21)-(-21) ]=1 (F)

= - 21 + 21

= 0

_____________

d) [(+5)³] ²=(-5) (F)

= 5^(3.2)

= 5^6

= 15625

Answer 2

Resposta:

$\left(\left(5\right)-\left(-3\right)^2\right)=16\\\\\left(5\right)-\left(-3\right)^2\\\\5-\left(-3\right)^2\\\\\left(-3\right)^2=3^2\\\\5-3^2\\\\5-9\\\\=-4\\\\\mathrm{Falso}$

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$\left(\left(-11\right)^2-\left(-12\right)^2\right)^1=0\\\\\left(\left(-11\right)^2-\left(-12\right)^2\right)^1\\\\\left(-11\right)^2-\left(-12\right)^2\\\\11^2-\left(-12\right)^2\\\\11^2-12^2\\\\121-12^2\\\\121-144\\\\=-23\\\\\mathrm{Falso}$

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$\left(\left(-21\right)-\left(-21\right)\right)=1\\\\\left(-21\right)-\left(-21\right)\\\\=-21+21\\\\=0\\\\\mathrm{Falso}$

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$\left(\left(5\right)^3\right)^2=\left(-5\right)\\\\5^6=15625\\\\=15625\\\\\mathrm{Falso}$

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