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trigonometric functions


prove that \(sin \dfrac{8π}{3} cos \dfrac{23π}{6} + cos \dfrac{13π}{3} sin \dfrac{35π}{6} = \dfrac{1}{2}\)

class-11 maths trigonometric functions
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prove that \( 3 sin \dfrac{π}{6} sec \dfrac{π}{3} – 4 sin \dfrac{5π}{6} cot \dfrac{π}{4} = 1\)

class-11 maths trigonometric functions
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prove that \( tan \dfrac{11π}{3} – 2 sin \dfrac{4π}{6} – \dfrac{3}{4} cosec^2 \dfrac{π}{4} + 4 cos^2 \dfrac{17π}{6} = \dfrac{(3 – 4\sqrt{3})}{2}\)

class-11 maths trigonometric functions
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prove that cos 570° sin 510° + sin (-330°) cos (-390°) = 0

class-11 maths trigonometric functions
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prove that tan (-125°) cot (-405°) – tan (-765°) cot (675°) = 0

class-11 maths trigonometric functions
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