Advertisements
Advertisements
प्रश्न
Find the following squares by suing the identities
(0.4p − 0.5q)2
Advertisements
उत्तर
(0.4p − 0.5q)2 = (0.4p)2 − 2 (0.4p) (0.5q) + (0.5q)2
[(a − b)2 = a2 − 2ab + b2]
= 0.16p2 − 0.4pq + 0.25q2
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
संबंधित प्रश्न
Use a suitable identity to get the following products.
(7a − 9b) (7a − 9b)
Using (x + a) (x + b) = x2 + (a + b) x + ab, find 5.1 × 5.2
Expand `("x"+1/2)^2`
Use an expansion formula to find the value.
(997)2
Simplify: (a + b)2 – 4ab
Simplify: (a + b)2 + (a – b)2
The difference of the squares of two consecutive numbers is their sum.
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x2 + 2abxy + b2y2
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
2x3 + 24x2 + 72x
Verify the following:
(5x + 8)2 – 160x = (5x – 8)2
