Expand ( 7 9 ) 3 . Options: A . &nbsp343729 B . &nbsp729343 C . &nbsp4981 D . &nbsp8149

Answer: Option A : A ( 7 9 ) 3 = 7 × 7 × 7 9 × 9 × 7 ⇒ ( 7 9 ) 3 = 343 729

Expand (79)3.

Question

Expand

{(\frac{7}{9})}^{3}

Options:

A . 343729

B . 729343

C . 4981

D . 8149

Answer: Option A
:
A

{(\frac{7}{9})}^{3} = \frac{7 \times 7 \times 7}{9 \times 9 \times 7} \Rightarrow {(\frac{7}{9})}^{3} = \frac{343}{729}

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