How to solve
2sinx + secx = 4cosx
For -Pi<x<Pi
#how to solve this
peak swift
wild forge
How to solve
2sinx + secx = 4cosx
For -Pi<x<Pi
divide though by cos( x)
2 tan(x) + sec^2(x) = 4
and rearrange using idenity
tan^2(x) + 1 = sec^2(x)
tan^2(x) + 2 tan(x) -3 = 0
(tan(x)+3)(tan(x)-1) = 0
tan(x) = -3 or tan(x) = 1
then find corresponding solutions in the domain provided
peak swift
Nice one