Advertisements
Advertisements
प्रश्न
Using identities, evaluate 992
उत्तर
992 = (100 − 1)2
= (100)2 − 2(100) (1) + (1)2 [(a − b)2 = a2 − 2ab + b2 ]
= 10000 − 200 + 1 = 9801
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Simplify (4m + 5n)2 + (5m + 4n)2
Using a2 − b2 = (a + b) (a − b), find (1.02)2 − (0.98)2
Which of the options given below is the square of the binomial `(8-1/"x")`?
Use an expansion formula to find the value.
(97)2
Expand: `("y" - 3/"y")^2`
Use a formula to multiply of (2t – 5)(2t + 5)
Simplify: (a + b)2 – 4ab
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
2x3 + 24x2 + 72x
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x3 + 2abx2 + b2x
If p + q = 12 and pq = 22, then find p2 + q2.
