Trigonometric Expression Independence (Jee Mains) | ExamDuo
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Basic Ratios, Identities & Formulas
Medium
Trigonometric Expression Independence
The expression cos²(A – B) + cos² B – 2 cos(A – B) cos A cos B is
SELECT ONE OPTION
A
dependent on A
B
dependent on B
C
dependent on A and B
D
independent of A and B
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