Question

Please answer aaaaaaa

Answer 1

• k = 2

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Use of identities:

• 
  `√(a)=a^(1/2)`
• 
  `(a^b)^c=a^(bc)`

Simplify the given expression as below:

• 
  `√(x^4) =(x^4)^(1/2)=x^(4\cdot1/2)=x^2`

By comparing we see that:

• k = 2