Evaluate: (i) 305^2 +295^2 (ii) (2a^3+b^2c^5)^2-(2a^3-b^2c^5)^2
Evaluate: (i) 305^2 +295^2 (ii) (2a^3+b^2c^5)^2-(2a^3-b^2c^5)^2 (i) 3052 + 2952 = (300+5)2 +(300-5)2 = (300)2 +2 . 300 . 5 …
Expansion and Factorisation
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Evaluate: (i)(x^2+x+1)(x^2-x+1) (ii) (a-b+c)(b+c-a) (iii) (a+b+c) (a+b-c)
Evaluate: (i)(x^2+x+1)(x^2-x+1) (ii) (a-b+c)(b+c-a) (iii) (a+b+c) (a+b-c) (i) (x2+x+1)(x2-x+1) =x2(x2-x+1)+x(x2-x+1)+1(x2-x+1) = x4 -x3 +x2 +x3-x2+x+x2-x+1 = x4+x2+1 (ii) (a-b+c)(b+c-a) = …
(i) If a-b=2 and a^2+b^2=36 then find ab (ii) If a-b=2 ab =63 find a^2+b^2 and (a+b)^2
(i) If a-b=2 and a^2+b^2=36 then find ab (ii) If a-b=2 ab =63 find a^2+b^2 and (a+b)^2 [S.Chand ICSE Class …
If 3x+2y=20 and xy=14/9 then find 27x^3+8y^3
If 3x+2y=20 and xy=14/9 then find 27x^3+8y^3 [S.Chand ICSE Class 9 Chapter 3 Exercise 3.1 Expansion and Factorisation Solution ] …
Find 8x^3-1/8x^3 when 2x-1/2x=p
Find 8x^3-1/8x^3 when 2x-1/2x=p [S.Chand ICSE Class 9 Chapter 3 Exercise 3.1 Expansion and Factorisation Solution ] $\left(2x – \frac{1}{2x}\right) …
If x+$\frac{1}{x}$=$\sqrt{3}$ then find $x^3 + \frac{1}{x^3}$
If x+$\frac{1}{x}$=$\sqrt{3}$ then find $x^3 + \frac{1}{x^3}$ [S.Chand Class ICSE 9 Chapter 3 Exercise 3.1 Expansion and Factorisation Solutions] $x …
If (x+1/x)=2 then find (x^2+1/x^2) ,(x^3+1/x^3) and (x^4+1/x^4)
If (x+1/x)=2 then find (x^2+1/x^2) ,(x^3+1/x^3) and (x^4+1/x^4) [S.Chad ICSE Class 9 Chapter 3 Exercise 3.1 Expansion and Factorisation Solution] …
Find a^2+b^2+c^2 when a+b+c=m and ab+bc+ca=n
Find a^2+b^2+c^2 when a+b+c=m and ab+bc+ca=n [S.Chand ICSE Class 9 Chapter 3 Exercise 3.1 Expansion and Factorisation Solution ] (a+b+c)2 …
If a^2-5a+1=0 find the value of a+1/a and a^2+1/a^2
If a^2-5a+1=0 find the value of a+1/a and a^2+1/a^2 a2-5a+1=0 ⟹ a2+1=5a $\Rightarrow \frac{a^2 + 1}{a}$ = 5 $\Rightarrow \frac{a^2}{a} …
If a^2+1/a^2=7 find the value of a+1/a, a-1/a and a^2-1/a^2
If a^2+1/a^2=7 find the value of a+1/a, a-1/a and a^2-1/a^2 [S.Chand ICSE Class 9 Chapter 3 Exercise 3.1 Expansion and …