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**how would i solve this???**

Let respectively b = (b1, b2, b3) and e = (e1, e2, e3) denote the magnetic

and electric field in some medium. They are governed by Maxwell’s equations which look as follows:

(0.1) dte = curl b

(0.2) dtb = −curl e

(0.3) div e = 0

(0.4) div b = 0.

Show that each bi and each ei satisfies the

__wave__equation

(dt^2-delta)phi = 0)