Answer:
(i) \[5xy{{z}^{2}}-3zy\] Terms: \[5xy{{z}^{2}},\] \[-3zy\] Their coefficients: 5, ? 3 (ii) \[1+x+{{x}^{2}}\] Terms 1, \[x,\] \[{{x}^{2}}\] Their coefficients: 1, 1, 1 (iii) \[4{{x}^{2}}{{y}^{2}}-4{{x}^{2}}{{y}^{2}}{{z}^{2}}+{{z}^{2}}\] Terms: \[4{{x}^{2}}{{y}^{2}},\] \[-4{{x}^{2}}{{y}^{2}}{{z}^{2}}\] \[{{z}^{2}}\] Their coefficients: 4 ?4 1 (iv) \[3-pq+qr-rp\] Terms: 3, \[-pq,\] \[qr,\] \[-rp\] Their coefficients: 3, ?1 1, ?1 (v) \[\frac{x}{2}+\frac{y}{2}-xy\] Terms: \[\frac{x}{2},\,\frac{y}{2},\,-xy\] Their coefficients: \[\frac{1}{2},\,\frac{1}{2},\,-1\] (vi) \[0.3a-0.6\,ab\,+0.5\,b\] Terms: 0.3a \[-0.6ab,\] \[0.5b\] Their coefficients: 0.3, \[-0.6,\] 0.5.
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