Question

CDS 4. solve the following equation for general solution: b. - Cos^2x-sin^2x + cosx = 0​

Answer 1

Answer:

x=2nπ

Step-by-step explanation:

-cos^2x-sin^2x+cosx=0

-(cos^2x+sin^2x)+cosx=0

-1+cosx=0

cosx=1

x=2nπ +or- 0

therefore general solution x=2nπ