Math Problem Statement
buktikan: cotan⁴a (1-cos⁴a) - 2Cotan²a = 1
Solution
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Math Problem Analysis
Mathematical Concepts
Trigonometry
Trigonometric Identities
Formulas
cot a = cos a / sin a
sin^2 a + cos^2 a = 1
cos^4 a (1 - cos^4 a) - 2 cos^2 a = sin^4 a
Theorems
Pythagorean Identity: sin^2 a + cos^2 a = 1
Trigonometric Identity Manipulation
Suitable Grade Level
Grade 10-12 (High School)
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