Advertisements
Advertisements
प्रश्न
Use the formula to find the value.
98 × 102
योग
Advertisements
उत्तर
It is known that, (a + b) (a − b) = a2 − b2.
98 × 102
= (100 − 2) × (100 + 2)
= (100)2 − (2)2
= 10000 − 4
= 9996
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
संबंधित प्रश्न
Find the following squares by suing the identities.
`(2/3 m + 3/4 n)^2`
Simplify (a2 − b2)2
Using identities, evaluate (5.2)2
Use an expansion formula to find the value.
(1005)2
Use the formula to find the value.
54 × 46
Expand: (2a – 3b)2
Expand: (2x + 3y)2
Using identity, find the value of (100.1)2
The sum of areas of two squares with sides 4a and 4b is ______.
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x2 + 2ax + 1
