Question

Solve for cosxcos(x+pi divided by 4)=0 0

Answer 1

Answer:

Step-by-step explanation:

hello : solutions in R

cosxcos((x+π)/4) =0

means :   cosx = 0   or   cos((x+π)/4) =0

1)   cosx = 0    means : x = π/2+kπ    k in Z

2)  cos((x+π)/4) =0  means :  (x+π)/4 =  π/2+kπ .......continu calculate : x