Mathematics
If x^2 - 1/x^2 + 1 = 3/5, the value of x is : (i) 1/2 (ii) 2 (iii) ±1/2 (iv) ±2
Related Questions
If A : B = 7 : 5 and B : C = 7 : 5, then A : C is :
25 : 49
49 : 25
1
15 : 14
If (2x + 3y) : (3x + 2y) = 4 : 3; then x : y is :
6 : 1
2 : 3
1 : 6
3 : 2
Two numbers are in the ratio 5 : 8. If 10 is subtracted from each number, the ratio becomes 4 : 7. The numbers are :
80 and 40
50 and 80
25 and 40
40 and 25
The compounded ratio of x - y : x + y and (x + y)2 : x2 - y2 is :
2 : 1
1 : (x + y)2
1 : 1
1 : 2