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Exercise 3.1 Q1. How will you describe the position of a table lamp on your study table to another person?Ans: The above figure is a 3-D […]

Q1: Use suitable identities to find the following products: (i) (x + 4)(x + 10) Ans: Using the identity (x + a)(x + b) = x2 + (a + […]

Q1. Determine which of the following polynomials has (x + 1) a factor:(i) x3 + x2 + x + 1Ans: Let p(x) = x3 + x2 + x + 1The zero […]

Q1. Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.(i) 4x2–3x+7Ans: The equation 4x2–3x+7 can be written […]

Exercise 1.3 Q1. Write the following in decimal form and mention the kind of decimal expansion each has. (i) 36/100Ans:= 0.36 (Terminating) (ii) 1/11Ans: (iii) Ans: = 4.125 […]

Q1. State whether the following statements are true or false. Justify your answers.(i) Every irrational number is a real number.Ans: True Reason: Irrational Numbers – A number […]

Q1. Is zero a rational number? Can you write it in the form p/q where p and q are integers and q ≠ 0?Ans: We know that […]

Q1. A survey conducted by an organisation for the cause of illness and death among the women between the ages 15–44 (in years) worldwide, found the […]

Table of contents Exercise 11.1 Q1. Diameter of the base of a cone is 10.5 cm and its slant height is 10 cm. Find its curved […]