If Cos A + sin A= 2 cos A show that Cos A-sinA= 2 Sin A.
If sinA + 2cosA = 1. Prove that 2sinA -cosA= 2.
If sin A + 2cos A = 1
Prove That 2sin A - cos A = 2
Please explain with full steps
If cos A + sin A = √2 sinA , Then, Find sin A - cos A
Show that : 1+sinAcosA+cosA1+sinA=2cosA