cosx=cos60° what's X between 0 and 360

x=300 because when you draw a y=cos x graph the cos 60 is on the decreasing part of the curve just before 90 degrees crossing zero. Then at 270 its increasing again and its 30 degrees more.

OB

Related Maths GCSE answers

All answers ▸

Expand and simplify (3x^2 + 2)(2x + 5) – 6x(x^2 – 3)


Solve this quadractic equation: x^2 - 8x + 15 = 0


Solve the quadratic equation x^2+5x+6=0


Solve the following simultaneous equations: 3x + 5y = 19 and 8x - 2y = -18. If both equations represent lines in a coordinate system, at which point do they intersect?