Practicing Success
Practicing Success
CUET Preparation Today
If $K+\frac{1}{K}=3$, then what is the value of $K^2+\frac{1}{K^2}$ ? |
9 6 7 5 |
7 |
If $K+\frac{1}{K}=3$ $K^2+\frac{1}{K^2}$ = ? If $K+\frac{1}{K}=n$ then, $K^2+\frac{1}{K^2}$ = n2 - 2 $K^2+\frac{1}{K^2}$ = 32 - 2 = 7 |
