Question

please tell the important questions of real number and linear equations in two variable from rd sharma class 10

Answer 1

1) define - fundamental theorem of arithmetic
2) the hcf and lcm of 2 no. are 9 and 360 respectively ,if one no. is 45 then write other no.
3) use Euclid division algorithm to show that the cube of any positive integer is of form 4m ,4m+1,4m+8
4) prove √ 5 as irrational number
5) prove 3+√5 is irrational number
6) find hcf and lcm of 6, 72, 120
7) solve graphically the system of linear equation 2x + y = 8 ; x+1 = 2y
also find the coordinates of the point where the line meet the y -axis
8) solve 99x +101y= 499
101x+99y= 501
9) example 13 of chapter 3 page no .56
10) solve for x and y
0.4 x + 3y =1.2 , 7x -2y = 17/6
11) solve by elimination method
5 x - 2 y = 11
3x + 4y = 4
12) draw a graph of the equation x-2 y+2=0 and 3x+ 2y- 18 =0

Answer 2

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