y^2-z^2+4y+4z
solve
and give explanation for answer
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y^2-z^2+4y+4z
solve
and give explanation for answer
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Answer:
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Step-by-step explanation:
A) x
A) x 2
A) x 2 +y
A) x 2 +y 2
A) x 2 +y 2 +z
A) x 2 +y 2 +z 2 -2x-4y+2z-3=0 (x−1) 2 +(y−2) 2 +(z+1) 2 -9=0