D = _
R = _

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Step-by-step explanation:

. a real coordinate space of dimension n, written Rn or R n {\​displaystyle ... C 1 > 0 , ∃ C 2 > 0 , ∀ x , y ∈ R n : C 1 d ( x , y ) ≤ q ( x − y ) ≤ C 2 d ( x , y ) . {\displaystyle \exists C_{1}>0,\ \exists C_{2}>0,\ \forall \mathbf {x} ,\​mathbf ...

Step-by-step explanation:

answer: you have to send a photo of the question

step-by-step explanation:

the answer is (-4,-4)

hope this ! : d