1.

(2i-j).(3i+k)a)5 b) 8c) 6 d) 1​

Answer»

6Explanation:(2i-j).(3i+k)2i.3i - j.3i + k.2i - k.j6i^2-0 +0 -06i^26 ×1=6because i.i =i^2 =1



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