Samacheer Kalvi 8th Maths Guide Chapter 3 Algebra Ex 3.8 Tamilnadu Samacheer Kalvi 8th Maths Solutions Chapter 3 Algebra Ex 3.8 Question 1. Fill in the blanks: (i) X- axis and Y-axis intersect at _________ . Answer: Origin (0,0) (ii) The coordinates of the point in third quadrant are always _________ . Answer: negative … Read more
Samacheer Kalvi 8th Maths Guide Chapter 3 Algebra Ex 3.7 Tamilnadu Samacheer Kalvi 8th Maths Solutions Chapter 3 Algebra Ex 3.7 Question 1. Fill in the blanks: (i) The solution of the equation ax + b = 0 is _______ . Answer: −b/a Hint: ax + b = 0 ax = – b ∴ x … Read more
Samacheer Kalvi 8th Maths Guide Chapter 3 Algebra Ex 3.6 Tamilnadu Samacheer Kalvi 8th Maths Solutions Chapter 3 Algebra Ex 3.6 Question 1. Fill in the blanks: (i) The value of x in the equation x + 5 = 12 is ________ . Answer: 7 Hint: Given, x + 5 = 12 x = 12 … Read more
Samacheer Kalvi 8th Maths Guide Chapter 3 Algebra Ex 3.5 Tamilnadu Samacheer Kalvi 8th Maths Solutions Chapter 3 Algebra Ex 3.5 Question 1. Subtract: -2(xy)2 (y3 + 7x2y + 5) from 5y2 (x2y3 – 2x4y + 10×2) Answer: Question 2. Multiply (4×2 + 9) and (3x – 2). Answer: (4×2 + 9)(3x – 2) = 4×2(3x – 2) + 9(3x … Read more
Samacheer Kalvi 8th Maths Guide Chapter 3 Algebra Ex 3.4 Tamilnadu Samacheer Kalvi 8th Maths Solutions Chapter 3 Algebra Ex 3.4 Question 1. Factorise the following by taking out the common factor (i) 18xy – 12yz Answer: 18xy – 12yz = (2 × 3 × 3 × y × x) – (2 × 2 × … Read more
Samacheer Kalvi 8th Maths Guide Chapter 3 Algebra Ex 3.3 Tamilnadu Samacheer Kalvi 8th Maths Solutions Chapter 3 Algebra Ex 3.3 Question 1. Expand (i) (3m + 5)2 (ii) (5p – 1)2 (iii) (2n – 1)(2n + 3) (iv) 4p2 – 25q2 Answer: (i) (3m + 5)2 Comparing (3m + 5)2 with (a + b)2 we have a … Read more
Samacheer Kalvi 8th Maths Guide Chapter 3 Algebra Ex 3.2 Tamilnadu Samacheer Kalvi 8th Maths Solutions Chapter 3 Algebra Ex 3.2 Question 1. Fill in the blanks Question 5. Divide: (i) 32y2 – 8yz by 2y (ii) (4m2n3 + 16m4 n2 – mn) by 2mn (iii) 5xy2 – 18x2y3 + 6xy by 6xy (iv) 81(p4 q2 r3 + 2p3q3 r2 – 5p2q2r2) by (3pqr)2 Answer: (i) … Read more
Samacheer Kalvi 8th Maths Guide Chapter 3 Algebra Ex 3.1 Tamilnadu Samacheer Kalvi 8th Maths Solutions Chapter 3 Algebra Ex 3.1 Question 1. Complete the table. Answer: Question 2. Find the product of the terms. (i) -2mn, (2m)2, -3mn (ii) 3x2y , -3xy3, x2y2 Answer: (i) (-2mn) × (2m)2 × (-3mn) = (-2mn) × 22m2 × … Read more
Samacheer Kalvi 8th Maths Guide Chapter 2 Measurements InText Questions Tamilnadu Samacheer Kalvi 8th Maths Solutions Chapter 2 Measurements InText Questions Think (Text Book Page No. 51) Question 1. 22/7 and 3.14 are rational numbers. Is ‘π’ a rational number? Why? Answer: 22/7 and 3.14 are rational numbers π has non-terminating and non-repoating decimal expansion. So it … Read more
Samacheer Kalvi 8th Maths Guide Chapter 2 Measurements Ex 2.4 Tamilnadu Samacheer Kalvi 8th Maths Solutions Chapter 2 Measurements Ex 2.4 Question 1. Two gates are fitted at the entrance of a library. To open the gates easily, a wheel is fixed at 6 feet distance from the wall to which the gate is fixed. … Read more