Exhibit 1.1 VAN KAMPEN UNIT TRUSTS, SERIES 847 TRUST AGREEMENT Dated: January 26, 2009 This Trust Agreement among Van Kampen Funds Inc., as Depositor, The Bank of New York Mellon, as Trustee, and Van Kampen Asset Management, as Supervisor, sets forth...Trust Agreement • January 26th, 2009 • Van Kampen Unit Trusts Series 847
AGREEMENTAgreement • January 26th, 2009 • Van Kampen Unit Trusts Series 847 • New York
