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  • 25-09-2020
  • Mathematics
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sin3A/sinA-Cos3A/CosA=2​

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lifelongknowledge62 lifelongknowledge62
  • 25-09-2020

Answer:

sin3A/sinA-Cos3A/CosA=2​

taking LCM

= Sin3A.CosA - Cos3A. SinA

     SinA . CosA

= Sin(3A-A)

  SinA . CosA

=  Sin2A          

   SinA . CosA

= 2 SinA. CosA

    SinA . CosA

=2

Step-by-step explanation:

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