Number system| Ex - 1.1| NCERT

Class 10 Exercise 10.2 Question 1 | CBSE Class 10 Ex -10.2 Q1 | NCERT | Class 10 Maths Chapter 10

Number System- Introduction

For a real number a, if the system {:[(1,a,a^2),(a,1,a),(a^2,a,1)][(x),(y),(z)]=[(1),(-1),(1)]:} of the linear equations, has infinitely many solutions, then 1+a+a^2=

If x and y are complex numbers, then the system of equations (1+i)x+(1-i)y=1,2i x+2y=1+i has

In two different system of unit an acceleration is represented by the same number, whilst a velocity is represented by numbers in the ratio 1:3 . The ratio of unit of length and time are

If xa n dy are complex numbers, then the system of equations (1+i)x+(1-i)y=1,2i x+2y=1+i has Unique solution No solution Infinite number of solutions None of these

For a real number alpha, if the system [1alphaalpha^2alpha1alphaalpha^2alpha1][x y z]=[1-1 1] of linear equations, has infinitely many solutions, then 1+alpha+alpha^2=

Volume & Surface area Ex : 13.1

In system called the star system we have 1 star kilogram =10^(20) kg . 1 starmeter =10^(8) m , 1 starsecond =10^(3) second then calculate the value of 1 joule in this system.