Question

cos theta - 1 =0

Answer 1

\(\cos(\theta)=1\) is a start

Answer 2

what is the question?

Answer 3

I believe this is my way of explaining

ALL odd multiples of pi
cos(theta) +1 = 0
=>cos(theta)= -1=cos(pi)
=>(theta)= 2n(pi)+pi
n = 0,1,2,3,4...............................…
=>(theta)= pi,3(pi),5(pi),7(pi)....................…

Answer 4

find all solutions to the equation. write your answer in radians in terms of pi. Then they have a whole bunch simples like\[k \in Z\]

Answer 5

\[k\in\mathbb Z\] mean that k is a integer

ie \(k=\{...,-3,-2,-1,0,1,2,3,...\}\)