WebEvaluate 102×98 using suitable standard identity. Medium Solution Verified by Toppr Using the identity (x+a)(x+b) = x 2+(a+b)x+ab Writing 102 as 100+2 and 98 as 100−2 Hence (100+2)(100−2) = 100 2+[2+(−2)]100+(2)(−2) = 10000+(0)100−4 = 9996 The answer is 9996 Was this answer helpful? 0 0 Similar questions Evaluate: 53×55 Medium View … WebMar 28, 2024 · Transcript Ex 2.5, 7 Evaluate the following using suitable identities: (iii) (998)3 We write 998 = 1000 – 2 (998)3 = (1000 − 2)3 Using (a – b)3 = a3 – b3 – 3ab (a – b) Where a = 1000 & b = 2 = (1000)3 − (2)3 − 3 (1000) (2) (1000 − 2) = 1000000000 − 8 − 6000 (998) = 1000000000 − 8 − 5988000 = 1000000000 − 5988008 = 994011992
Ex 2.5, 2 (iii) - Evaluate 104 × 96 without multiplying directly
WebMar 23, 2024 · Transcript Ex 2.2, 4 Find the product using suitable properties. (a) 738 × 103 738 × 103 We write 103 as (100 + 3) = 738 × (100 + 3) = 738 × 100 + 738 x 3 = 73800 + 2214 = 76014 Next: Ex 2.2, 4 (b) Important → Ask a doubt Chapter 2 Class 6 Whole Numbers Serial order wise Ex 2.2 WebUsing suitable identities, evaluate the following: 98×103 Solution We have, 98×103=(100−2)(100+3) = (100)2+(−2+3)100+(−2)×3 = 10000+100−6 = 10094 [using the identity, (x+a)(x+b)= x2+(a+b)x+ab] Suggest Corrections 31 Video Solution EXEMP - Grade 08 - Mathematics - Algebraic Expressions, Identities and Factorisation - Q86_12 … spider-man always home the movie
Evaluate the following products without multiplying directly: - Toppr
WebUsing algebraic Identities, (x + a) (x + b) = x 2 + (a + b)x + ab. (a + b) (a - b) = a 2 - b 2. (i) 103 × 107. Identity: (x + a) (x + b) = x 2 + (a + b)x + ab. 103 × 107 = (100 + 3) (100 + 7) … WebThis video explains the concept of Expansion using Algebraic Identities. All Questions Ask a Doubt Answered Unanswered My Questions My Answers Filter Questions CBSE 8 - Maths Draw and show (A+B) ² =A²+2 A B + B². Asked by muskaanmenuk 10 Jun, 2024, 08:59: PM ANSWERED BY EXPERT CBSE 8 - Maths WebEvaluate (102) 2 using suitable identity. Q. Using suitable identity, evaluate 136 ... spiderman and batman crossover