Selina Concise Class 7 Math Chapter 11 Fundamental Concepts Exercise 11A Solution
EXERCISE 11A
(1) Separate constant terms and variable terms form the following:
Ans: 8 is the only constant term and each of the remaining terms is variable.
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Selina Concise Class 7 Math Chapter 11 Fundamental Concepts Exercise 11A SolutionEXERCISE 11A(1) Separate constant terms and variable terms form the following:(2) For each expression, given below, state whether it is a monomial, binomial or trinomial:(3) Write the coefficient of:(4) For each of the following monomials, write its degree:(5) Write the degree of each of the following polynomials:(6) Group the like terms together:(7) Write the numerical coefficient of each of the following:(8) In – 5 x3 y2 z4; write the coefficient of:
(2) For each expression, given below, state whether it is a monomial, binomial or trinomial:
(i) Monomial
(ii) Binomial
(iii) Monomial
(iv) Trinomial
(v) Binomial
(vi) Monomial
(vii) Binomial
(viii) Binomial
(ix) Binomial
(3) Write the coefficient of:
(i) – 3a
(ii) p2y
(iii) – 1
(iv) – p2
(4) For each of the following monomials, write its degree:
(i) 1
(ii) 3
(iii) 4
(iv) 5
(v) 7
(vi) 9
(5) Write the degree of each of the following polynomials:
(i) 4
(ii) 8
(iii) 7
(iv) 3
(v) 1
(vi) 4
(6) Group the like terms together:
(i) 9x2, – 3x2 and x2 are like terms; xy and – 2xy are like terms.
(ii) ab and – 3ab are like terms; – a2b, 5a2b and – 8a2b are like terms.
(iii) 7p, – 2p and 3p are like terms; 8pq and – 5pq are like terms.
(7) Write the numerical coefficient of each of the following:
(i) 1
(ii) – 1
(iii) 2
(iv) – 8
(v) 3
(vi) – 9
(8) In – 5 x3 y2 z4; write the coefficient of:
(i) – 5x3y2z2
(ii) -5 x3z4
(iii) – 5x3yz2
(iv) – 5yz4
(v) 5x2z4
(vi) x2z3.
The degree of given algebraic expression = 3 + 2 + 4 = 9