Calcule o valor das expressões:
a) -∛8 + 16^1/4 -(-2) + 27^1/3
b)-∛-8 + 16^-1/4 -(1/2)^-2 + 8^-4/3
c) 4. (0,5)^4 +√0,25 + 8^-2/3
a) -∛8 + 16^1/4 -(-2) + 27^1/3
b)-∛-8 + 16^-1/4 -(1/2)^-2 + 8^-4/3
c) 4. (0,5)^4 +√0,25 + 8^-2/3
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a) -∛8 + 16^1/4 -(-2) + 27^1/3
-2∛2³ + (2^4)^1/4 + 2 + (3^3)^1/3
-2.2 + 2^4/4 + 2 + 3^3/3
- 4 + 2^1 + 2 + 3^1
- 4 + 2 + 2 + 3 ==> 3
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b)-∛-8 + 16^-1/4 -(1/2)^-2 + 8^-4/3
-2∛2³ + (2^4)^-1/4 - (2^-1)^-2 + (2^3)^-4/3
-2.2 + 2^-4/4 - 2^2 + 2^-12/3
- 4 + 2^-1 - 4 + 2^-4 ==> - 4 + 1 - 4 + 1 ==> - 4 + 1 - 4 + 1
2 2^4 2 16
- 64 + 8 - 64 + 1 ==> - 199
16 16
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c) 4. (0,5)^4 +√0,25 + 8^-2/3
4. (0,5)^4 +√0,5² + (2^3)^-2/3 ==> 4.(0,5)^4 + 0,5 + 2^-2
4. (1)^4 + 1 + 1 ==> 4 + 1 + 1
2 2 2² 16 2 4
4 + 8 + 4 ==> 16 ==> 1
16 16