I think the answer is 32 if I did my math right sorry if it wrong
The correct answer is 6,840 meters. Hope this helps! ;)
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;

I just don’t know what to say I look like a little bit confused lol lol