leonardo0430 leonardo0430
  • 25-05-2019
  • Mathematics
contestada

can someone check this one for me , thank you!

can someone check this one for me thank you class=

Respuesta :

jimrgrant1 jimrgrant1
  • 25-05-2019

Answer:

C

Step-by-step explanation:

Using sum/difference to product identity

• sin x - sin y = 2 cos([tex]\frac{x+y}{2}[/tex]) sin ([tex]\frac{x-y}{2}[/tex])

with x = 4Θ and y = 2Θ

Then

sin(4Θ) - sin(2Θ)

= 2 cos([tex]\frac{4o+2o}{2}[/tex]) sin([tex]\frac{4o-2o}{2}[/tex])

= 2cos(3Θ)sinΘ → C

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