Answer:
Turn off battery supply → The electromagnet turns off.
Place a magnet care inside the coil of wire → The strength of the electromagnet increases.
Change the direction in which the current flows → The poles of the electromagnet reverses
Answer:
x=3+2×sqrt(3)
x=3-2×sqrt(3)
Step-by-step explanation:
2(x-3)²-24=0
2(x-3)²=24
(x-3)²=12
Case 1:
x-3=sqrt(12)=2×sqrt(3)
x=3+2×sqrt(3)
Case 2:
x-3=-sqrt(12)=-2×sqrt(3)
x=3-2×sqrt(3)
Answer:
Step-by-step explanation:
f(- 1) = - 1 + 4 = 3
f(2) = 2 + 4 = 6
f(12) = 4(12) - 7 = 41
2z^7
-3--5=2. z^7
Since both have the same exponent
Answer:
6/25 24%
Step-by-step explanation:
