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Someone please tell me how do i do question number 24. of ex 3.3 NCERT CLASS 11th?????
  • 2 answers

Abhishek Kumar 6 years, 11 months ago

cos 4x=1-8sin^2x cos^2x LHS=cos 4x=1-2sin^2 2x 1-2(2sinx cosx)^2 1-2(4sin^2x cos^2x) 1-8sin^2x cos^2x=RHS

Aditya Pandey 5 years, 8 months ago

With the help of your brain..
https://examin8.com Test

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