(ii) `[4/3-:(8/-7)]-[3/4xx4/3]+[4/3xx(-1/4)]`

(3/4) xx(3/4) xx(3/4)

(5/9xx-4/7-:8/-27)xx(3/-4)

Express each of the following in exponential form: (-5)xx(-5)xx(-5) (ii) (-5)/7xx(-5)/7xx(-5)/7xx(-5)/7 (iii) 4/3xx4/3xx4/3xx4/3xx4/3

Show that -4/3xx(2/5+(-7/10))=(-4/3xx2/5)+(-4/3xx(-7/10))

Evaluate (-3)/4xx(-3)/4xx(-3)/4xx(-3)/4=(-)^4

Perform the following multiplication a) 2/9 xx 7/8 xx 1/9 b) 1/3 xx 4/5 xx 1/4 c) 1/3 xx 2/4 xx 5/3 d) 1/2 xx 1/3 xx 1/4 e) 1/5 xx 2/5 xx 2/3 f) 2/3 xx 5/6 xx 1/4

Simplify and express each of the following as power of a rational number: (2/3)^3xx(-6/7)^2xx(-7/4)xx3/2 (iii) -(2/5)^2xx(5/7)^2xx(49)/5+(-4/5)^3xx5/4xx3/4

Verify that: (2)/(3)xx(-(4)/(5)+(-(3)/(7)))=(2)/(3)xx(-(4)/(5))+(2)/(3)xx(-(3)/(7))

(3/2 xx (-7)/4) - ((-5)/2 xx 3/4)