Advertisements
Advertisements
प्रश्न
Evaluate the following, using suitable identity
9982
योग
Advertisements
उत्तर
9982 = (1000 – 2)2
Taking a = 1000 and b = 2
(a – b)2 = a2 – 2ab + b2 becomes
= 10002 – 2(1000)(2) + 22
= 1000000 – 4000 + 4
9982 = 9,96,004
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Algebra - Exercise 3.1 [पृष्ठ ६२]
APPEARS IN
संबंधित प्रश्न
Expand (2)2p − 3q
Expand: (98)2
Expand the following square, using suitable identities
(b – 7)2
Evaluate the following, using suitable identity
472
Factorise the following using suitable identity
x2 – 8x + 16
Factorise the following using suitable identity
64x2 – 112xy + 49y2
Simplify: (a + b)2 – (a – b)2
Factorise the following, using the identity a2 – 2ab + b2 = (a – b)2.
`9y^2 - 4xy + (4x^2)/9`
Factorise the following.
a2 – 16p – 80
Subtract b(b2 + b – 7) + 5 from 3b2 – 8 and find the value of expression obtained for b = – 3.
