☰
✕

Coordinate Geometry
Question
Wired Faculty App

Without actually calculating the cubes, find the value of each of the following:
(28)3 + (- 15)3 + (- 13)3

Answer

(28)3 + (- 15)3 + (- 13)3
(28)3 + (- 15)3 + (- 13)3
= 3(28)(- 15)(- 13)
| ∵ (28) + (- 15) + (- 13) = 0
= 16380.

Sponsor Area

Some More Questions From Coordinate Geometry Chapter

Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.

4x2 - 3x + 7

Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.

x10+ y3 + t50

Write the coefficients of x2 in each of the following:

2 + x2 + x

Write the coefficients of x2 in each of the following:
2 - x2 + x3