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ipn [44]
3 years ago
10

Simplify this expression

Mathematics
1 answer:
qaws [65]3 years ago
6 0

Answer:

10

Step-by-step explanation:

25-10+3-8

15+3-8

18-8

10

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(N * 3) + 6 - (n * 2) = n + 3 what is value of n
GalinKa [24]
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7 0
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Determine the commutators of the operators a and a+,where a = (x + ip)/2 ^1/2 and a+ = (x - ip)/ 2 ^1/2
Vsevolod [243]

Answer:

Given that:

a = (\frac{x+ip}{2})^{\frac{1}{2}} and a+= (\frac{x-ip}{2})^{\frac{1}{2}}

if a , a+ commutator, it obeys aa^+ = a^+a

First find:

aa^+ = (\frac{x+ip}{2})^{\frac{1}{2}} (\frac{x-ip}{2})^{\frac{1}{2}}

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Now;

a^+a =(\frac{x-ip}{2})^{\frac{1}{2}} (\frac{x+ip}{2})^{\frac{1}{2}} = (\frac{(x)^2-(ip)^2}{4})^{\frac{1}{2}}

              =(\frac{(x)^2-(ip)^2}{4})^{\frac{1}{2}}=(\frac{(x)^2+(p)^2}{4})^{\frac{1}{2}}

therefore, aa^+ = a^+a which implies the operators a and a+ are commutators.    


7 0
3 years ago
Solve the following quadratic equation<br> 9m2 +9= 11
jeka94

Answer: m=

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
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