kiambriaross
kiambriaross kiambriaross
  • 15-05-2020
  • Mathematics
contestada

please help! 12 points

please help 12 points class=

Respuesta :

hoanganh384628 hoanganh384628
  • 15-05-2020

Answer:

Step-by-step explanation:

sin2x = 2sinx*cosx

         = [tex]2\sqrt{sin^{2}x }[/tex] * cosx

         = [tex]2\sqrt{(1-cos^{2}x }[/tex] * cosx

         = 2  [tex]\sqrt{1-\frac{3}{5} ^{2} } *\frac{3}{5}[/tex]

         = [tex]\frac{8}{5} * \frac{3}{5}[/tex]  

         = 24/25        

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