( let t: r? r be a linear transformation of the 2-dimensional vector space r2 (the x-v-plat to itself which is the reflection across a line y = mx for some m e

( Let T: R? R be a linear transformation of the 2-dimensional vector space R2 (the x-v-plat to itself which is the reflection across a line y = mx for some m e R. Then the matrix representation of the linear transtormaticn With respect to the standard ba B fe,, e,} of RR, where 6. e, 1 1-m 1+m 1 1+m 2m 1+ m 2m 2n (A) (B) m-1 2m m-1 1 1-m 2m None of these (D) (C) 1+m m +1 2m I at