Advertisements
Advertisements
प्रश्न
Use an expansion formula to find the value.
(1005)2
Advertisements
उत्तर
It is known that (a + b)2 = a2 + 2ab + b2 and (a − b)2 = a2 − 2ab + b2
(1005)2
= (1000 + 5)2
= (1000)2 + 2 × 1000 × 5 + (5)2
= 1000000 + 10000 + 25
= 1010025
संबंधित प्रश्न
Use a suitable identity to get the following products.
`(3a - 1/2)(3a - 1/2)`
Simplify (4m + 5n)2 + (5m + 4n)2
Use an expansion formula to find the value.
(102)2
Use an expansion formula to find the value.
(97)2
Use the formula to multiply the following.
`(x/5+6)(x/5-6)`
Use the formula to find the value.
54 × 46
Expand: (51)2
Factors of 9x2 + 6xy are
(x2 + y2)(y2 + x2) = (x2 + y2)2
Take suitable number of cards given in the adjoining diagram [G(x × x) representing x2, R(x × 1) representing x and Y(1 × 1) representing 1] to factorise the following expressions, by arranging the cards in the form of rectangles: x2 + 4x + 4. Factorise 2x2 + 6x + 4 by using the figure.
Calculate the area of figure.
