(ICAP + 2 J cap + 3 kcap)×(3icap-2jcap+kcap)
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Step-by-step explanation:
i(3i-2j+k)+2j(3i-2j+k)+3k(3i-2j+k)
3i²-2k+j+6k-4j²+2i+9j-6i+3k²
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