\[\LARGE \lim_{x\to0}\frac{1-\cos 2x}{x\cdot \sin x }\]
A) 1
B) 2
C) 3
D) 4
I need a hint please ...

\[\LARGE \lim_{x\to0}\frac{1-\cos 2x}{x\cdot \sin x }\]
A) 1
B) 2
C) 3
D) 4
I need a hint please ...

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\[\cos(2x)=1-2\sin^2x\]should help I think

Thank you... I'll see what I can do :D

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