1.

The value of in the equation of design compressive strength is given by

A. = 0.5[1- ( -0.2)+ <sup>2</sup>].
B. = 0.5[1- ( -0.2)-+ <sup>2</sup>].
C. = 0.5[1+ ( +0.2)- <sup>2</sup>].
D. = 0.5[1+ ( -0.2)+ <sup>2</sup>].
Answer» E.


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