2 years ago

Which of the following are solutions to the equation cos^2 2x-1/4=0? Check all that apply.

Mathematics

1 answer:

Nata [24]2 years ago

6 0

Answer:

Step-by-step explanation:

Cos^2 2x=1/4

Cos 2x =+-1/2

2x=z

Cos z=+-1/2

z1=pi/3

z2=11pi/3

z1 and z2 are possible.

x1=pi/6

x2=11pi/6

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