Advertisements
Advertisements
प्रश्न
Evaluate the following :
(8.12)3 - (3.12)3
उत्तर
(8.12)3 - (3.12)3
= (8.12 - 3.12)3 + 3(8.12)(3.12)(8.12 - 3.12)
= 53 + 3(8.12)(3.12) x 5
= 125 + 15 x (8.12)(3.12)
= 125 + 15 x 25.3344
= 125 + 380.016
= 505.016.
APPEARS IN
संबंधित प्रश्न
Find the cube of : 3a- 2b
Find the cube of : `( 3a - 1/a ) (a ≠ 0 )`
Two positive numbers x and y are such that x > y. If the difference of these numbers is 5 and their product is 24, find:
(i) Sum of these numbers
(ii) Difference of their cubes
(iii) Sum of their cubes.
If a ≠ 0 and `a - 1/a` = 4 ; find : `( a^2 + 1/a^2 )`
Find the cube of: 4x + 7y
If `5x + (1)/(5x) = 7`; find the value of `125x^3 + (1)/(125x^3)`.
If `"r" - (1)/"r" = 4`; find : `"r"^3 - (1)/"r"^3`
If 2a - 3b = 10 and ab = 16; find the value of 8a3 - 27b3.
Simplify:
`("a" + 1/"a")^3 - ("a" - 1/"a")^3`
Evaluate the following :
(5.45)3 + (3.55)3
