xihu26 xihu26
  • 07-01-2023
  • Mathematics
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I dont know how to prove the equation below...pls help prove it with clear steps, i have no clue how does sin^2x can go into 1+cosx

I dont know how to prove the equation belowpls help prove it with clear steps i have no clue how does sin2x can go into 1cosx class=

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