Jim

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Area​=3⋅2h(−6)+h(−3)​+3⋅2h(−3)+h(0)​+3⋅2h(0)+h(3)​+3⋅2h(3)+h(6)​=23           ​[h(−6)+2⋅h(−3)+2⋅h(0)+2⋅h(3)+h(6)]=           23​(0+2⋅5+2⋅3+2⋅5+0)=39​ Hi, I'm stuck on how to simplify the first Eq. ...