
Maths Crash Course - Live lectures + all videos + Real time Doubt solving!
Ex 2.5
Ex 2.5, 1 (ii)
Ex 2.5, 1 (iii) Important
Ex 2.5, 1 (iv)
Ex 2.5, 1 (v)
Ex 2.5, 2 (i) Deleted for CBSE Board 2023 Exams
Ex 2.5, 2 (ii) Important
Ex 2.5, 2 (iii)
Ex 2.5, 3 (i) Deleted for CBSE Board 2023 Exams
Ex 2.5, 3 (ii) Important
Ex 2.5, 3 (iii)
Ex 2.5, 4 (i) Deleted for CBSE Board 2023 Exams
Ex 2.5, 4 (ii)
Ex 2.5, 4 (iii) Important
Ex 2.5, 4 (iv)
Ex 2.5, 4 (v)
Ex 2.5, 4 (vi)
Ex 2.5, 5 (i) Deleted for CBSE Board 2023 Exams
Ex 2.5, 5 (ii) Important
Ex 2.5, 6 (i)
Ex 2.5, 6 (ii)
Ex 2.5, 6 (iii)
Ex 2.5, 6 (iv) Important
Ex 2.5, 7 (i) Deleted for CBSE Board 2023 Exams
Ex 2.5, 7 (ii)
Ex 2.5, 7 (iii) Important
Ex 2.5, 8 (i)
Ex 2.5, 8 (ii)
Ex 2.5, 8 (iii) Important
Ex 2.5, 8 (iv) Important
Ex 2.5, 8 (v)
Ex 2.5, 9 (i)
Ex 2.5, 9 (ii) You are here
Ex 2.5, 10 (i) Important Deleted for CBSE Board 2023 Exams
Ex 2.5, 10 (ii)
Ex 2.5, 11 Deleted for CBSE Board 2023 Exams
Ex 2.5,12 Important
Ex 2.5,13
Ex 2.5, 14 (i)
Ex 2.5, 14 (ii) Important
Ex 2.5, 15 (i)
Ex 2.5, 15 (ii) Important
Ex 2.5, 16 (i) Deleted for CBSE Board 2023 Exams
Ex 2.5, 16 (ii) Important
Last updated at Aug. 25, 2021 by Teachoo
Maths Crash Course - Live lectures + all videos + Real time Doubt solving!
Ex 2.5, 9 Verify: (ii) x3 - y3 = (x - y) (x2 + xy + y2) L.H.S x3 - y3 We know (x - y)3 = x3 - y3 - 3xy (x - y) x3 - y3= (x - y)3 +3xy (x - y) = (x - y)3 + 3xy (x - y) = (x - y) [ (x - y)2 + 3xy)] = (x - y) [(x2 + y2 - 2xy) + 3xy] = (x - y) (x2 + y2 + xy) = (x - y) (x2 + xy + y2) = R.H.S R.H.S (x - y) (x2 + xy + y2) Hence proved