For (i)A=[cosαsinα−sinαcosα], verify that A'A=I. For (ii)A=[sin�

1.	For (i)A=[cosαsinα−sinαcosα], verify that A'A=I. For (ii)A=[sinαcosα−cosαsinα], verify that A'A=I.
Answer» For $(i) A = [\begin{matrix} c o s α & s i n α - s i n α & c o s α \end{matrix}]$ , verify that A'A=I. For (ii) $A = [\begin{matrix} s i n α & c o s α - c o s α & s i n α \end{matrix}]$ , verify that A'A=I.

For (i)A=[cosαsinα−sinαcosα], verify that A'A=I. For (ii)A=[sinαcosα−cosαsinα], verify that A'A=I.

Answer»

For $(i) A = [\begin{matrix} c o s α & s i n α - s i n α & c o s α \end{matrix}]$ , verify that A'A=I.

For (ii) $A = [\begin{matrix} s i n α & c o s α - c o s α & s i n α \end{matrix}]$ , verify that A'A=I.