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JEEMAIN and NEET
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Trigonometry
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Simplify :$\large\frac{\sin 7x-\sin 3x-\sin 5x+\sin x}{\cos 7x+\cos 3x-\cos 5x-\cos x}$
$(a)\;\tan 2x\qquad(b)\;\tan x\qquad(c)\;\cot x\qquad(d)\;1$
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