When you have a compound inequality like so, but the variable is a negative, how do you graph it? Do you just graph it normally
or..
1 answer:
You might be interested in
Answer:
x=πn, n∈Z
Step-by-step explanation:
if sin²2x=1-cos²2x, then
1-cos²2x-2cos2x+2=0; ⇒ cos²2x+2cos2x-3=0; ⇔ (cos2x+3)(cos2x-1)=0;