Advertisements
Advertisements
प्रश्न
Using identities, evaluate 9982
Advertisements
उत्तर
9982 = (1000 − 2)2
= (1000)2 − 2(1000)(2) + (2)2 [(a − b)2 = a2 − 2ab + b2 ]
= 1000000 − 4000 + 4 = 996004
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
संबंधित प्रश्न
Use a suitable identity to get the following products.
(x + 3) (x + 3)
Use a suitable identity to get the following products
(2a − 7) (2a − 7)
Use a suitable identity to get the following products.
(− a + c) (− a + c)
Evaluate the following, using suitable identity
512
(a + b)2 = a2 + b2
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x2 + 2ax + 1
Factorise the following.
y2 + 18x + 65
Factorise the following.
p2 + 14p + 13
Verify the following:
(a + b)(a + b)(a + b) = a3 + 3a2b + 3ab2 + b3
What should be added to 4c(– a + b + c) to obtain 3a(a + b + c) – 2b(a – b + c)?
