Exhibit 1.1 VAN KAMPEN UNIT TRUSTS, SERIES 782 TRUST AGREEMENT Dated: August 12, 2008 This Trust Agreement among Van Kampen Funds Inc., as Depositor, The Bank of New York Mellon , as Trustee, and Cohen & Steers Capital Management, Inc. and Van Kampen...Trust Agreement • August 12th, 2008 • Van Kampen Unit Trusts Series 782
