TLS Online TPP Program

#Question id: 13845


Which one of the following is the solution for 𝑐𝑜𝑠^2𝑥 + 2𝑐𝑜𝑠𝑥 + 1 = 0, for values of 𝑥 in the range of 0° < 𝑥 < 360°?

#Unit 12. Biochemical Engineering
  1. 45° 
  2. 90°
  3. 180°
  4. 270°