Question

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) 1.2 a + 0.8 b 
(vii) 3.14 r² 
(viii) 2 (l + b) 
(ix) 0.1 y + 0.01 y²

Answer 1

(i) 5 – 3t² : Terms- -3t² Numerical coefficient - -3
(ii) 1+ t +t²+t³: Terms- t, t²,t³ Numerical coefficient - 1 1 1
(iii) x+2xy+3y: Terms- x,2xy,3y Numerical coefficient - 1 2 3
(iv) 100m+1000n: Terms- 100m, 1000n Numerical coefficient - 100 1000
(v) –p²q²+7pq: Terms- -p²q² 7pq Numerical coefficient - -1,7
(vi) 1.2a+0.8b: Terms- 1.2a 0.8b Numerical coefficient - 1.2, 0.8
(vii) 3.14r²: Terms- 3.14r² Numerical coefficient - 3.14
(viii) 2(l+b)=2l+2b: Terms- 2l 2b Numerical coefficient - 2 2
(ix) 0.1y+0.01y²: Terms- 0.1y 0.01^y2 Numerical coefficient - 0.1 0.01