12 to the second power + b to the secnd
power =20
12^2 + b^2=20
Solve for b:
b^2+144 = 20
Subtract 144 from both sides:
b^2 = -124
Take the square root of both sides:
Answer: |
| b = (2 i) sqrt(31) or b = (-2 i) sqrt(31) [It has only complex solutions]
