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Which expression is equivalent to 3cos2(StartFraction theta Over 2 EndFraction) minus 3?

Three-halves(cos(ϴ) – 1)
Three-halves(cos(ϴ) – 5)
3(cos(ϴ) + 2)
3(cos(ϴ) + 1)

Which expression is equivalent to 3cos2StartFraction theta Over 2 EndFraction minus 3 Threehalvescosϴ 1 Threehalvescosϴ 5 3cosϴ 2 3cosϴ 1 class=

Respuesta :

Answer:

It's a 3/2(cos(O)-1

Step-by-step explanation:

I plugged all the equations in desmos and that was equal to the given equation.

Answer:

A

Step-by-step explanation:

For the same reason as above. Credit to them.

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