Question 7 (ii) - Algebra Identities and Formulas - Chapter 8 Class 8 Algebraic Expressions and Identities
Last updated at April 16, 2024 by Teachoo
Algebra Identities and Formulas
Question 1 (ii) Important
Question 1 (iii)
Question 1 (iv)
Question 1 (v) Important
Question 1 (vi) Important
Question 1 (vii)
Question 1 (viii)
Question 1 (ix) Important
Question 1 (x)
Question 2 (i)
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Question 3 (i)
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Question 4 (i)
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Question 5 (i)
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Question 6 (i)
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Question 7 (i)
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Question 7 (iii)
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Question 8 (i)
Question 8 (ii)
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Question 8 (iv) Important
Last updated at April 16, 2024 by Teachoo
Question 7 Using 𝑎^2−𝑏^2=(𝑎+𝑏)(𝑎−𝑏) , find (ii) (1.02)^2−(0.98)^2 (1.02)^2−(0.98)^2 𝑎^2−𝑏^2=(𝑎+𝑏)(𝑎−𝑏) Putting 𝑎 = 1.02 & 𝑏 = 0.98 = (1.02+0.98)×(1.02−0.98) = 2×0.04 = 2×4/100 = 8/100 = 𝟎.𝟎𝟖