1.

Let Q=⎛⎜⎜⎝cosπ4−sinπ4sinπ4cosπ4⎞⎟⎟⎠ and x=⎛⎜⎜⎜⎜⎝1√21√2⎞⎟⎟⎟⎟⎠ thenQ3x is equal to

Answer»

Let Q=
cosπ4sinπ4sinπ4cosπ4
and
x=


1212


thenQ3x is equal to



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