Advertisements
Advertisements
प्रश्न
Using suitable identities, evaluate the following.
(1005)2
मूल्यांकन
Advertisements
उत्तर
We have,
(1005)2 = (1000 + 5)2
= (1000)2 + 52 + 2 × 1000 × 5 ...[Using the identity, (a + b)2 = a2 + b2 + 2ab]
= 1000000 + 25 + 10000
= 1010025
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 7: Algebraic Expression, Identities and Factorisation - Exercise [पृष्ठ २३३]
APPEARS IN
संबंधित प्रश्न
Simplify the following using the formula: (a − b)(a + b) = a2 − b2: 197 × 203
Simplify the following using the formula: (a − b)(a + b) = a2 − b2: 113 × 87
Evaluate the following: 34 × 36
Expand the following:
(−p + 2q + 3r)2
If 2x – 3y – 4z = 0, then find 8x3 – 27y3 – 64z3
Simplify:
(1.5p + 1.2q)2 – (1.5p – 1.2q)2
Simplify:
(b2 – 49)(b + 7) + 343
Expand the following, using suitable identities.
(x2 + y2)(x2 – y2)
Using suitable identities, evaluate the following.
(98)2
Using suitable identities, evaluate the following.
47 × 53
