+91-8076753736[email protected]
logo
logo
-->

Coordinate Geometry

Question
CBSEENMA9001876
Wired Faculty App

Without actually calculating the cubes, find the value of each of the following:
 (- 12)3 + (7)3 + (5)3

Solution

(28)3 + (- 15)3 + (- 13)3.
(- 12)3 + (7)3 + (5)3
(- 12)3 + (7)3 + (5)3 = 3(- 12)(7)(5)
| ∵ (- 12) + (7) + (5) = 0
= - 1260

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

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation