Advertisements
Advertisements
प्रश्न
Expand : (a+b−c)2
योग
उत्तर
(a+b−c)2 = (a)2 + (b)2 +(−c)2 + 2 × a × b + 2 × b × (−c) + 2 × (−c) × (a)
= a2 + b2 + c2 + 2ab − 2bc − 2ca
shaalaa.com
Important Formula of Expansion
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Expand : `(2"a"-1/"a")^2`
Expand : `(2"x"-1/(2"x"))^2`
Find the square of `"5a"/"6b"-"6b"/"5a"`
Find the square of `8"x"+3/2"y"`
If `"a" +1/"a"=2`, find : `"a"^2+1/"a"^2`
If `"m" -1/"m"=5`, find : `"m"^2+1/"m"^2`
If `"m" -1/"m"=5`, find: `"m"^4+1/"m"^4`
If `"m" -1/"m"=5`, find: `"m"^2-1/"m"^2`
If a2 + b2 = 41 and ab = 4, find : a + b
Expand : (2a – 5b – 4c)2
