Number Systems Ex 1.2 Q2

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

Let X = {1, 2, 3,.......... 10} and P = {1, 2, 3, 4, 5} . The number of subsets Q of X such that P Delta Q = {3) is __________

The charges - q, Q, -q are placed along x-axis at x = 0, x = a and x = 2a. If the potential energy of the system is zero, then Q:q is

A system goes from P to Q by two different paths in the p-V diagram as shown in figure. Heat given to the system in path 1 is 1000 J. The work done by the system along path 1 is more than path 2 by 100 J. What is the heat exchanged by the system in path 2 ?

Class 12 maths ncert solution chapter vector algebra Ex-10.2 Qno.1

Consider the system of equations sinx.cos2y=(a^2−1)^2+1 , cosx.sin2y=a + 1 , then the Number of values of x in [0,\ 2pi] when the system has solution for permissible values of a is/are 1 (b) 2 (c) 3 (d) infinite

If p ,q be two A.M. ' s and G be one G.M. between two numbers, then G^2= a) (2p-q)(p-2q) (b) (2p-q)(2q-p) c) (2p-q)(p+2q) (d) none of these

Number of values of a for which the system of equations ax+(2-a)y=4+a^(2) and ax +(2a-1)y= a^(5) -2 possess no solution is

Express each of the following as a rational number of the form p/q , where p and q are integers and q != 0 : (i) 2^(-3) (ii) (-4)^(-2) (iii) 1/(3^(-2)) (1/2)^(-5) (v) (2/3)^(-2)

chapter 1| ex: 1.1 |number system