Find the value of B between 0 degree and 360 degree which satisfy the equation 4Cos²B 2CosB=1 Post author By Sandy Spencer Post date Questions › Category: Maths › Find the value of B between 0 degree and 360 degree which satisfy the equation 4Cos²B 2CosB=1 0 Vote Up Vote Down Sandy Spencer asked 9 months ago Find the value of B between 0 degree and 360 degree which satisfy the equation 4Cos²B+2CosB=1 1 Answers 0 Vote Up Vote Down Sandy Spencer answered 9 months ago 4 Cos²B + 2 CosB – 1 = 0 use the quadratic formula to find the values of CosB Please login or Register to submit your answer Username or Email Address Password Remember Me ← In an exam a student scored 60 marks out of a possible 80. What percentage is this → The price of a pair of shoes is increased by 12% . If the present price of the pair