सदिशों bar(a)+bar(b) और bar(a)-bar(b) के...

सदिशों `bar(a)+bar(b)` और `bar(a)-bar(b)` के बीच का kon ज्ञात कीजिए जबकि `bar(a)=2hati-hatj+3hatk` और `bar(b)=3hati+hatj-2hatk` है | अत: `(bar(a)+bar(b))` तथा `(bar(a)-bar(b))` दोनों पर लम्ब एक सदिश ज्ञात कीजिए |

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