Question

Plz help me...

Solve 4cos^2 theta=3 (theta is between 0 and 360)

plz answer fast..I will mark as the Brainliest who answer first and correct...​

Answer 1

4cos^2 θ=3

=> cos^2 θ= 3/4
(Applying square root on both sides)
Root of ( cos^2 θ) = root of (3/4)
cos θ= √3/2

Since, cos30= √3/2
Therefore,
θ= 30 degrees.

Answer 2

Answer:

theta=30°

Step-by-step explanation:

4cos^2theta=3

cos^2theta=3÷4

cos theta=√3÷√4

cos theta = √3÷2

cos theta =cos 30°

theta =30°