Find 
and 
if z = x3 + xy - y cos xy + 2.
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Topics or issues that generate intense public debate and disagreement due to differing personal beliefs and values.
Custody Battle
A legal dispute between parents or guardians over the legal guardianship and care of a child.
Embryo Implantation
The process where a fertilized egg attaches itself to the lining of the uterus to begin pregnancy.
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The highest judicial body in a country, typically responsible for interpreting the constitution and reviewing laws to ensure they comply with constitutional principles.
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