AR 380-53 is an Army Regulation that governs the Army's program for managing classified information and sensitive activities related to national security. It outlines the responsibilities and procedures for safeguarding classified information, including personnel security, information security, and physical security measures. The regulation aims to prevent unauthorized access and protect national security interests. It is essential for maintaining the integrity and confidentiality of sensitive military operations and intelligence.
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ar
a, ar, ar^2 and ar^3 where a and r are constants.
( a + ar ) = a ( 1 + r )
12.56
12.56