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**Unformatted text preview: **y a t dm 2 2 2-= , and the range of integration is from 0 to a , so -= a dy y a y M t y 2 2 cm . , 2 Making the substitutions , 2 , , 2 2 2 2 1 y du y a u t a M-=-= = and 3 4 3 4 2 2 3 2 2 1 2 cm 2 2 a u a du u a y a o a = -=-= ....

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