what is the angle between (icap +jcap) and (icap - jcap)?
let
a = i + j
b =i-j
since, magnitute of a =magnitute ofb = sq. root 2
using dot product,
a . b = ab cos@
(i+j)(i-j) =sq. root 2 *sq. root 2 cos@
1 - 1 = 2cos@
cos@ = 0
@= 900 =pi/2
what is the angle between (icap +jcap) and (icap - jcap)?
let
a = i + j
b =i-j
since, magnitute of a =magnitute ofb = sq. root 2
using dot product,
a . b = ab cos@
(i+j)(i-j) =sq. root 2 *sq. root 2 cos@
1 - 1 = 2cos@
cos@ = 0
@= 900 =pi/2