Question

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Exercise 11.1
(a)
State True or False for each of the following:
The branch of mathematics in which we study the use of letters is called algebra.
A variable is represented by letter 'X' only.
(d) If 'n' is a variable, then 2n and 2 x n are same,
(b) A variable has a fixed value.
(e) 100 is not a variable.
(f) If 'm' is a variable, then m + 10 and 10m are same.​

Answer 1

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(a)The branch of mathematics in which we study the use of letters is called algebra. True

(b)A variable is represented by letter 'X' only. True

(c) If 'n' is a variable, then 2n and 2 x n are same. False

(d) A variable has a fixed value. True

(e) 100 is not a variable. False

(f) If 'm' is a variable, then m + 10 and 10m are same. True