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ចំណេះដឹងមូលដ្ឋាន -វ៉ិចទ័រក្នុងប្លង់-

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០៩២ ៧៧៤៤៤០ ឆន ំសិក ២០១៦-២០១៧<br />

2:1 ជអនុគមន៍ៃន វុ ិចទ័រ a និង b <br />

ង វុ ិចទ័រ c ជវុ ិចទ័រទីំងៃនចំណុ ច C ែចកេ្រកអងកត់ AB<br />

<br />

េនះេគបន OC OA AC<br />

1<br />

<br />

េយ ចំណុ ច C ែចកេ្រកអងកត់ AB មផលេធៀប 2:1<br />

<br />

េនះ AC 2AB<br />

ែត AB AOOB OAOB<br />

<br />

េនះ AC 2OA OB<br />

ម <br />

<br />

OC OA OA OB OA OB<br />

1 េគបន 2 <br />

<br />

សមមូលនឹង c a2b<br />

<br />

ដូចេនះ c a2b<br />

។<br />

១៥. រកផលបូក ផលដកវុ ិចទ័រ AB<br />

<br />

AC , ACBC<br />

, ABBC<br />

<br />

, ABAC,<br />

CBCB<br />

េយើងមន<br />

<br />

ABACCB<br />

េរៀបេរៀងេយ៖ ЯĊŲ Ю₤₣lН₣ Page 54

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