Advertisements
Advertisements
प्रश्न
Evaluate the following :
(3.29)3 + (6.71)3
बेरीज
Advertisements
उत्तर
(3.29)3 + (6.71)3
= (3.29 + 6.71)3 - 3(3.29) (6.71) (3.029 + 6.71)
= (10)3 - 3(3.29) (6.71) (10)
= 1000 - 30 (5 - 1.71) (5 + 1.71)
= 1000 - 30 (5)2 - (1.71)2
= 1000 - 30 (25 - 2.9241)
= 1000 - 30 x 22.0759
= 1000 - 662.277
= 337.723.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Expand.
`(2m + 1/5)^3`
If `( a + 1/a )^2 = 3 "and a ≠ 0; then show:" a^3 + 1/a^3 = 0`.
Use property to evaluate : 133 + (-8)3 + (-5)3
If a ≠ 0 and `a - 1/a` = 3 ; find `a^2 + 1/a^2`
Find the cube of: 4x + 7y
If x3 + y3 = 9 and x + y = 3, find xy.
If x + 2y = 5, then show that x3 + 8y3 + 30xy = 125.
Expand: (41)3
Find 27a3 + 64b3, if 3a + 4b = 10 and ab = 2
Expand (2a + 5)3
