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Ex 14.4
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Ex 14.4, 13 Important You are here
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Last updated at March 23, 2023 by Teachoo
Ex 14.4, 13 Find and correct the errors in the following mathematical statements. (2a + 3b) (a β b) = 2π^2 β 3π^2 (2a + 3b) (a β b) = 2π^2 β 3π^2 Solving L.H.S : (2a + 3b) (a β b) = 2a (a β b) + 3b (a β b) = (2a Γ a) β (2a Γ b) + (3b Γ a) β (3b Γ b) = γ2πγ^2 β 2ab + 3ba β γ3πγ^2 = γ2πγ^2 β 2ab + 3ab β γ3πγ^2 Taking ab common = γ2πγ^2 + ab (β2 + 3) β γ3πγ^2 (Since 3ba = 3ab) = γ2πγ^2 + ab β γ3πγ^2 β΄ (2a + 3b) (a β b) = γππγ^π + ab β γππγ^π is the correct statement