Prove that: `cos^2 2x- cos^2 6x= sin 4x sin 8x`

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Prove that: `cos^2 2x- cos^2 6x= sin 4x sin 8x`
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This is not good explanation. Very disappointed😞😞

adityaverma.
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Ise kehtehe forcefully answer lana 🙆‍♀️🤷🏻‍♀️🤦🏻‍♀️

maneesha
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formula yaad karke aao pahle fir bachho ko smjhana

varshajha
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Here's the explanation:- Since the whole equation is in multiplication, we can rearrange it as we like, and ma'am did the same, she arranged (2sin4xcos4x)(2cos4xsin4x), and used the identity
Hope this worked👍🏻

devanshsoni
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cosx-cosy ka formula to aata hai nahi hai bda aaye question samjhne vaale

varshajha
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Mereko samjh toh aya par iam 100% sure dusro ko ghanta samjh nai aaya hoga aur jo last step hai wo iss basis pe hai ki tum chahe 2×3 likho ya 3×2 baat wahi rahegi hope you understand

rxbelivier
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Sala mujhe formula yaad h uske baad bhi is anpadh ke paas answer check krne aaya hu😂 ghadi ko cos x - cos y ka formula nhi aata

Deepaksharma-qc
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I didn't understand the last step

subhrajitpaul
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Kya padha rahe ho Bhai ? Aap kaha the gyani baba😑

sangeetagiri
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Thank you mam
Kafi accha explanation tha

DevDhaka-oiho
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ye doubtnut wale konsa nasha krte hn??? inki koi bii video m dekho sab wrong ans late hn!!!! jb atta ni hn tb Q padhne ate hoo isse acha to m hi explain kedetiiii atleast formula to sahii 4th fali arts ke student bhi thik krdete

nainkijaiswal