If `|a| = 3 , |b| = 4 ` , then a value of `lamda` for which `a + lamda b ` is
Channel: Doubtnut
Date: 17/05/2020

If `|a| = 3 , |b| = 4 ` , then a value of `lamda` for which `a + lamda b ` is perpendicular to `a - lamda b` is