Question

Cosx(cosx+1)=0

Answer 1

Cos*x*cos(x+1)=0 ?

Answer 2

\[\cos(x)[\cos(x)+1]=0\]
solve for
cos(x)=0 and cos(x)+1=0

these will give you solutions

Answer 3

Since ab = 0 if and only if a = 0 or b = 0.

Answer 4

^^ Zero Product Property ^^ :)

Answer 5

sarahusher Or not And

Answer 6

You must solve both cos(x)=0 and cos(x)+1=0 to get all solutions.

Answer 7

@AntarAzri , you have to solve both of them for a complete set of solutions. You can't just choose which one you want to solve :)

Answer 8

The Zero Product Property does state "or" although it is the inclusive "or" which in my mind is equivalent to "and" but not the "and" of the common vernacular.