Let $$\root 3 \of a = \root 3 \of {26} + \root 3 \of 7 + \root 3 \of {63} $$ then
A. a < 729 but a > 216
B. a < 216
C. a > 729
D. a = 729
Answer: Option A
This Question Belongs to Arithmetic Ability >> Surds And Indices
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