Solution
Related Formula
Using Euler's formula:
eiθ = θ + i θCore Logic
Solving the quadratic root configurations for x² - √(6)x + 3 = 0:
x = √(6) ± √(6 - 12)2 = √(6) ± i√(6)2 = √(6)2(1 ± i)Given Im(α) > Im(β), we set:
α = √(3) ( 1+i√(2)) = √(3) eiπ/4 β = √(3) ( 1-i√(2)) = √(3) e-iπ/4Step 1: Simplify Target Expression
Let us factor out common variables:
α⁹⁹β + α⁹⁸ = α⁹⁸ ( (α)/(β) + 1 ) = α⁹⁸(α + β)βSince α + β = √(6):
Value = (√(3)eiπ/4)⁹⁸ · √(6)√(3)e-iπ/4 = 3⁴⁹ ei 98π/4 · √(2) eiπ/4 = 3⁴⁹ · √(2) ei 99π/4Evaluate ei 99π/4:
99(π)/(4) = 24π + (3π)/(4) ei 99π/4 = ei 3π/4 = -1+i√(2)Substituting this back:
Value = 3⁴⁹ · √(2) ( -1+i√(2) ) = 3⁴⁹(-1 + i)Step 2: Resolving Constants
Comparing with the given expression 3ⁿ(a + ib):
n = 49, a = -1, b = 1Therefore:
n + a + b = 49 - 1 + 1 = 49Pattern Recognition
Convert complex expressions into polar form r eiθ early. Power scaling like α⁹⁸ becomes simple multiplication under Euler structures.
Chapter Mix
Class 11 Mathematics: Complex Numbers and Quadratic Equations