Advertisements
Advertisements
प्रश्न
(a + b)2 – 2ab = ______ + ______.
रिकाम्या जागा भरा
Advertisements
उत्तर
(a + b)2 – 2ab = a2 + b2.
Explanation:
We have,
(a + b)2 – 2ab = a2 + b2 + 2ab – 2ab ...[∵ (a + b)2 = a2 + b2 + 2ab]
= a2 + b2
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Use a suitable identity to get the following products.
`(3a - 1/2)(3a - 1/2)`
Find the following squares by suing the identities.
(b − 7)2
Simplify (4m + 5n)2 + (5m + 4n)2
Expand (5a + 6b)2
Use the formula to find the value.
97 × 103
Use the formula to find the value.
98 × 102
Expand (3m + 5)2
Evaluate the following, using suitable identity
1032
If a + b = 5 and a2 + b2 = 13, then ab = ?
The cost of a chocolate is Rs (x + y) and Rohit bought (x + y) chocolates. Find the total amount paid by him in terms of x. If x = 10, find the amount paid by him.
