Advertisements
Advertisements
प्रश्न
Simplify:
`(x - 1/x)(x^2 + 1 + 1/x^2)`
Advertisements
उत्तर
`(x - 1/x)(x^2 + 1 + 1/x^2)`
= `x(x^2 + 1 + 1/x^2) - (1)/x (x^2 + 1 + 1/x^2)`
= `x^3 + x + (1)/x - x - (1)/x - (1)/x^3`
= `x^3 - (1)/x^3`.
APPEARS IN
संबंधित प्रश्न
Use suitable identity to find the following product:
`(y^2+3/2)(y^2-3/2)`
Evaluate the following product without multiplying directly:
95 × 96
Simplify the following products:
`(x^3 - 3x^2 - x)(x^2 - 3x + 1)`
Find the cube of the following binomials expression :
\[4 - \frac{1}{3x}\]
If \[x^4 + \frac{1}{x^4} = 119\] , find the value of \[x^3 - \frac{1}{x^3}\]
Find the following product:
(2ab − 3b − 2c) (4a2 + 9b2 +4c2 + 6 ab − 6 bc + 4ca)
Use the direct method to evaluate :
`("z"-2/3)("z"+2/3)`
Evaluate: (9 − y) (7 + y)
Evaluate: (5xy − 7) (7xy + 9)
Find the squares of the following:
(2a + 3b - 4c)
