Examlex
Prove the identity.
-4 cot 4x = 2 cot 2u - 2 tan 2u
Cohort Differences
Variations in characteristics or experiences of individuals who are born in different time periods.
Problem-solving Ability
The capacity to find solutions for difficult or complex issues.
Math Problems
Challenges or questions created to test or develop one's ability in mathematics.
Newborn Baby
An infant in its first few hours to weeks of life.
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