Answer:
Step-by-step explanation:
i cant draw a number line but we know that integers above 1 are positive. So 1,2,3,4, and 5 are positive and marked
Answer:
-0.03571428571
Step-by-step explanation:
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;