Advertisements
Advertisements
प्रश्न
Which of the options given below is the square of the binomial `(8-1/"x")`?
पर्याय
`64-1/"x"^2`
`64+1/"x"^2`
`64-16/"x"+1/"x"^2`
`64+16/"x"+1/"x"^2`
Advertisements
उत्तर
`64-16/"x"+1/"x"^2`
Explanation:
The given binomial is `(8-1/"x")`.
`(8-1/"x")^2`
= `(8)^2-2xx(8)xx(1/"x")+(1/"x")^2` ...`[∵ ("a"-"b")^2 ="a"^ 2-2"ab"+"b"^2]`
= `64-16/"x"+1/"x"^2`
Hence, the correct answer is option `64-16/"x"+1/"x"^2`
संबंधित प्रश्न
Use a suitable identity to get the following products.
(2y + 5) (2y + 5)
Use a suitable identity to get the following products.
(6x − 7) (6x + 7)
Using identities, evaluate 9982
Use an expansion formula to find the value.
(102)2
Use the formula to find the value.
502 × 498
Evaluate the following, using suitable identity
1032
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
4x2 + 12x + 9
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
`9x^2 + 2xy + y^2/9`
If a2 + b2 = 74 and ab = 35, then find a + b.
Factorise `x^2 + 1/x^2 + 2 - 3x - 3/x`.
