Answer:
368.28571428571429
Step-by-step explanation:
Just round
Answer:
−8d+8f+5.436564
Step-by-step explanation:
Answer:
-1352x
Step-by-step explanation:
Because x never got a value and then so it stands there.
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;
