- #1
lavidaenrosa
- 4
- 0
Homework Statement
a) ∫δ( x² cos x) dx with x from -∞ to +∞
b) Integral over C, with C = unit circle
∫C δ(α-α0) a ds
a =(1,1)
Homework Equations
a) δ(g(x)) =∑δ(x-xi)/|g'(xi)|
b)?
The Attempt at a Solution
a) g(x) = x² cosx
g'(x) = 2x cos x - x² sin x
xi = 0 and (2n+1)π/2
g'(0)=0 then what is 1/|g'(0)|??