Question

Solve for x: 4 cos^2 x+ √3=2(√3 + 1) cos x.​

Answer 1

Answer:

Step-by-step explanation:

Answer in photo

Answer 2

Answer:

solved

Step-by-step explanation:

4 cos^2 x+ √3=2(√3 + 1) cos x.​

  cos^2 x+ √3/4 =(√3 + 1)/2 cos x./2

​cos^2 x - (√3 + 1)/2 cos x + √3/4 = 0

cosx =   (√3 + 1)/2± √4-2√3/2÷2 =  (√3 + 1)± √3 -1 ÷4

cos x = √3/2 , 1 /2

x = 2nπ±π/3 , 2nπ±π/6 , n is any integer