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2. Use the identity (x + a) (x + b) = x^2 + (a + b) x + ab to find the following products. (iii) (4x – 5) (4x – 1)
12
Oct
2. Use the identity (x + a) (x + b) = x^2 + (a + b) x + ab to find the following products. (iii) (4x – 5) (4x – 1) 2. Use the identity (x + a) (x + b) = x^2 + (a + b) x + ab to find the following products. [...]
2. Use the identity (x + a) (x + b) = x^2 + (a + b) x + ab to find the following products. (ii) (4x + 5) (4x + 1)
12
Oct
2. Use the identity (x + a) (x + b) = x^2 + (a + b) x + ab to find the following products. (ii) (4x + 5) (4x + 1) 2. Use the identity (x + a) (x + b) = x^2 + (a + b) x + ab to find the following products. [...]
2. Use the identity (x + a) (x + b) = x^2 + (a + b) x + ab to find the following products. (i) (x + 3) (x + 7)
12
Oct
2. Use the identity (x + a) (x + b) = x^2 + (a + b) x + ab to find the following products. (i) (x + 3) (x + 7) 2. Use the identity (x + a) (x + b) = x^2 + (a + b) x + ab to find the following products. [...]
1. Use a suitable identity to get each of the following products. (x) (7a – 9b) (7a – 9b)
12
Oct
1. Use a suitable identity to get each of the following products. (x) (7a – 9b) (7a – 9b) 1. Use a suitable identity to get each of the following products. (x) (7a – 9b) (7a – 9b) October 12, 2020 Category: Chapter 9 - Algebraic Expressions and Identities , Maths , NCERT Class 8 [...]
1. Use a suitable identity to get each of the following products. (-a+c) (-a+c)
12
Oct
1. Use a suitable identity to get each of the following products. (-a+c) (-a+c) 1. Use a suitable identity to get each of the following products. (-a+c) (-a+c) October 12, 2020 Category: Chapter 9 - Algebraic Expressions and Identities , Maths , NCERT Class 8 ,
1. Use a suitable identity to get each of the following products. (vii) (6x – 7) (6x + 7)
12
Oct
1. Use a suitable identity to get each of the following products. (vii) (6x – 7) (6x + 7) 1. Use a suitable identity to get each of the following products. (vii) (6x – 7) (6x + 7) October 12, 2020 Category: Chapter 9 - Algebraic Expressions and Identities , Maths , NCERT Class 8 [...]
1. Use a suitable identity to get each of the following products. (vi) (a^2+ b^2) (- a^2+ b^2)
12
Oct
1. Use a suitable identity to get each of the following products. (vi) (a^2+ b^2) (- a^2+ b^2) 1. Use a suitable identity to get each of the following products. (vi) (a^2+ b^2) (- a^2+ b^2) October 12, 2020 Category: Chapter 9 - Algebraic Expressions and Identities , Maths , NCERT Class 8 ,
1. Use a suitable identity to get each of the following products. (v) (1.1m – 0.4) (1.1m + 0.4)
12
Oct
1. Use a suitable identity to get each of the following products. (v) (1.1m – 0.4) (1.1m + 0.4) 1. Use a suitable identity to get each of the following products. (v) (1.1m – 0.4) (1.1m + 0.4) October 12, 2020 Category: Chapter 9 - Algebraic Expressions and Identities , Maths , NCERT Class 8 [...]
1. Use a suitable identity to get each of the following products. (iv) (3a – 1/2)(3a – 1/2)
12
Oct
1. Use a suitable identity to get each of the following products. (iv) (3a – 1/2)(3a – 1/2) 1. Use a suitable identity to get each of the following products. (iv) (3a – 1/2)(3a – 1/2) October 12, 2020 Category: Chapter 9 - Algebraic Expressions and Identities , Maths , NCERT Class 8 ,
A circular ring has inner and outer radii equal to 20 mm and 50 mm respectively Mass of the ring is m = 0.8 g. It gently pulled out vertically from a water surface by a sensitive spring. When the spring is stretched 4 cm from its equilibrium position the ring is on verge of being pulled out from the water surface. If spring constant is k = 0.9 N/m find the surface tension of water.
12
Oct
A circular ring has inner and outer radii equal to 20 mm and 50 mm respectively Mass of the ring is m = 0.8 g. It gently pulled out vertically from a water surface by a sensitive spring. When the spring is stretched 4 cm from its equilibrium position the ring is on verge of [...]