railway RRB JE (CBT I + CBT II) Mock Test 2024 Quantitative Aptitude Trigonometry Circular Measure of Angles

जर sin θ = \( \frac{{\sqrt 3 }}{2}\) , आणि θ हा लघुकोन असेल, तर cos 3θ चे मूल्य शोधा.

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