Asked by Poindexter
Use the Quadratic Formula to solve the equation in the interval [0,2pi). Then use a graphing utility to approximate the angle x.
(1) 5/(tanx+secx)
(2) 4cos^2x-4cosx-1=0
Thank you.
(1) 5/(tanx+secx)
(2) 4cos^2x-4cosx-1=0
Thank you.
Answers
Answered by
bobpursley
1) is not an equation
2)
cosx= (4+-sqrt(16-4*(4)(-1))/8= you do it
check my thinking.
2)
cosx= (4+-sqrt(16-4*(4)(-1))/8= you do it
check my thinking.