Advertisements
Advertisements
प्रश्न
Expand `("a"/2+"b"/3)^2`
Advertisements
उत्तर
It is known that, (a + b)2 = a2 + 2ab + b2 and (a − b)2 = a2 − 2ab + b2.
`("a"/2+"b"/3)^2`
= `("a"/2)^2+2xx("a"/2)xx("b"/3)+("b"/3)^2`
= `"a"^2/4+("ab")/3+"b"^2/9`
संबंधित प्रश्न
Use a suitable identity to get the following products.
(x + 3) (x + 3)
Use a suitable identity to get the following products.
(− a + c) (− a + c)
Using (x + a) (x + b) = x2 + (a + b) x + ab, find 103 × 98
Use an expansion formula to find the value.
(997)2
Factorise the following expressions
x2 + 14x + 49
Using identity, find the value of (100.1)2
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
x2 + 14x + 49
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
x2 + 2x + 1
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
16x2 + 40x + 25
Verify the following:
(7p – 13q)2 + 364pq = (7p + 13q)2
