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P.2-19 Determine the values of the following products of base vectors: a) ax.аф d) aR a, g) arx a, h) a, a c) a, x a, f) aRa

Could someone please help me figure out how to solve these problems for Fundamentals of Electromagnetics? I've seen posts for this questions that simply post the converted base vectors and answers, but I'm confused how to convert them in the first place. For example, in part b, I see answers that immediately convert ay into sin θ si noa R + cos θ sin oae + cosoao but I can't figure out how that was determined in the first place. Can someone please help me with those steps in particular? Thank you in advance.

P.2-19 Determine the values of the following products of base vectors: a) ax.аф d) aR a, g) arx a, h) a, a c) a, x a, f) aRa i) a x aj b) ag a, e) a, ap Άρ.a
sin θ si noa R + cos θ sin oae + cosoao
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ん aa.aj o a2a3o b ae- ag ay.ay-I, C.y-o

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