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If z(1)=2+5i,z(2)=3-i,where" "i=sqrt(-1)...

If `z_(1)=2+5i,z_(2)=3-i,where" "i=sqrt(-1),` find
(i)`Z_(1)*Z_(2)`
(ii) `Z_(1)xxZ_(2)`
(iii) `Z_(2)*Z_(1)`
(iv) `Z_(2)xxZ_(1)`
(v) acute angle between `Z_(1)andZ_(2)`.
(vi) projection of `Z_(1)onZ_(2)`.

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