1.

Express each of the following as a rational number of the form (p/q):(i) (3/7)2(ii) (7/9)3(iii) (-2/3)4

Answer»

(i) Given (3/7)2

(3/7)2 = (3/7) x (3/7)

= (9/49)

(ii) Given (7/9)3

(7/9)3 = (7/9) x (7/9) x (7/9)

= (343/729)

(iii) Given (-2/3)4

(-2/3)4 = (-2/3) x (-2/3) x (-2/3) x (-2/3)

= ((16/81)



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