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0:38
YouTube
Paliwaal Maths Academy
“Cos2x = 1 – 2sin²x | Super Easy Trick!”
Cos2x = 1 – 2sin²x ka simple explanation. Class 10, 11, 12 students ke liye important trigonometry identity. More Maths Tricks & Fast Formulas on this channel! #shorts #maths #trigonometry #cos2x #class11 #class12 #mathstricks
209 views
3 weeks ago
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