1.

Find each of the following products:(i) (7/9ab2) × (15/7ac2b) × (-3/5a2c)(ii)  (4/3u2vw) × (-5uvw2) × (1/3v2wu)(iii)  (0.5x) × (1/3xy2z4) × (24x2yz)

Answer»

(i) (7/9ab2) × (15/7ac2b) × (-3/5a2c)

= 7/9 × 15/7 × -3/5 × a × a × a2 × b2 × b × c2 × c

= -a4b3c3

(ii) (4/3u2vw) × (-5uvw2) × (1/3v2wu)

= -20/9 × u2+1+1 × v1+1+2 × w1+2+1

= -20/9u4v4w4

(iii) (0.5x) × (1/3xy2z4) × (24x2yz)

= 12/3 × x1+1+2 × y2+1 × z4+1

= 4x4 × y3 × z5

= 4x4y3z5



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