Question

1. If 4Cos2 0 = 3 then 0 =​

Answer 1

Step-by-step explanation:

4cos2 o=3

Cos2 o =3/4

(cos2a=cos^2 (1-tano)

Answer 2

Answer:

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Step-by-step explanation:

4 cos2 θ = 3

cos2 θ = 3/4

cos θ = √3 / √4

cos θ = √3 / 2

• According to the trignometric table =>

cos θ = √3 / 2

cos 30° = √3 / 2

[θ = 30°]