

InterviewSolution
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Identify the numerical coefficients of terms (other than constants) in the following expressions :(i) 5 – 3t2(ii) 1 + t + t2 + t3(iii) x + 2xy + 3y(iv) 100m + 1000n(v) -p2q2 + 7pq(vi) 1.2a + 0.8b(vii) 3.14 r2(viii) 2 (l + b)(ix) 0.1 y + 0.01 y2 |
Answer» (i) 5 – 3t2 Term other than constant = -3/2 numerical co-efficient = -3 (ii) 1 + t + t2 + t3 Term other than constant = t, t2, t3 Numerical co-efficients = 1, 1, 1. (iii) x + 2xy + 3y Terms other than constants = x, 2xy + 3y Numerical co-efficients = 1, 2, 3 (iv) 100m + 1000n Terms other than constants = 100m, 1000n Numerical co-efficients = 100, 1000. (v) -p2q2 + 7pq Terms other than constants = -p2 q2, 7 pq Numerical co-efficients = -1, 7 (vi) 1.2a + 0.8b Terms other than constants = 1.2a, 0.8b Numerical co-efficients = 1.2, 0.8 (vii) 3.14 r2 Terms other than constants = 3.14r2 Numerical co-efficients = 3.14 (viii) 2 (l + b) Terms other than constants = 2l, 2b (∵ 2(l + b) = 2l + 2b) Numerical co-efficients = 2, 2 (ix) 0.1 y + 0.01 y2 Terms other than constants = 0.1 y, 0.01 y2 Numerical co-efficients = 0.1, 0.01 |
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