The number of integral values of `lambda` for which the equation `x^2+y^2+lambdax+(1-lambda)y+5=0` is the equation fo a circle whose radius cannot exceed `5,` is 14 (b) 18 (c) 16 (d) none of these

Explanation

Given that Radius`<=5`

We know that radius is


=`sqrt((lambda^2)/4​+((1−lambda)^2)/4​−5)
​<=5`

=>`lambda^2+(1−lambda)`


Given that Radius`<=5`

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