Advertisements
Advertisements
प्रश्न
Find the square of `2"a"-1/"a"`
Advertisements
उत्तर
`(2"a"-1/"a")^2=(2"a")^2+(1/"a")^2-2xx2"a"xx1/"a"`
`=4"a"^2+1/"a"^2-4`
APPEARS IN
संबंधित प्रश्न
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(208)2
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(92)2
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(415)2
Write the place name and place value of digit in the following number.
82,74,508
The expanded form of the number is given. Write the number.
60,000 + 4000 + 600 + 70 + 9
Write the following numbers in standard notation.
200000 + 7000 + 7
Represent given values in Abacus.
Write the number name of the following numbers represented in the Abacus
Find the face value and place value of the digits coloured in the given numbers.
9876
Find the face value and place value of the digits coloured in the given numbers.
8965
Complete the given table.
| Number | Expanded Form | |
| a | 6785 | |
| b | 4000 + 200 + 90 + 6 | |
| c | 3000 + 300 + 20 + 7 | |
| d | 9999 | |
| e | 5000 + 70 + 1 | |
| f | 2934 |
