The greater the value of `r_(+)//r_(-)`.

the value of sum r*r_(pr)

5 resistances R_(1), R_(2),R_(3),R_(4),R_(5) are joined as shown in the figure. The values of R_(1), R_(2), R_(3) and R_(4) are so adjusted that the current in the circuit does not change for any value of the resistance R_(5) . This is possible for the following relation

Let r_(1), r_(2) and r_(3) be the solutions of the equation x^(3) - 2 x^(2)+4 x+5074=0 , then the value of (r_(1) +2)(r_(2)+2)(r_(3)+2)

In any triangle ABC, find the least value of (r_(1) r_(2)r_(3))/(r^3)

In any triangle ABC, find the least value of (r_(1) + r_(2) + r_(3))/(r)

In any triangle ABC, find the least value of (r_(1) + r_(2) + r_(3))/(r)