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jholland03
22.12.2019 •
Mathematics
Which expression is equivalent to root 2/cubed root 2
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Ответ:
It's the second choice ⁶√2.
Step-by-step explanation:
Convert to fractional exponents:
√2 = 2^1/2
∛2 = 2^1/3
√2 / ∛2
= 2^1/2 / 2^1/3 = 2^(1/2-1/3)
= 2^(1/6)
Now change back to radicals:
= ⁶√2.
Ответ:
use an integrating factor
y' + xy = 138x
I F = e ∫ xdx = e ^(x^2/2)
y' e^(x^2/2) + xy e^x^2/2 = 138x e^x^2/2
x y * e^x2/2 = 138∫x e^x^2/2 dx
xy * e ^(x^2/2) = 138 e^(x^2/2)
y = 138/ x + c