seawu
12.10.2019 •
Mathematics
Factorise completely
200y²-18x²
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Ответ:
Step-by-step explanation:
2(100y²- 9x²)
2[ (10y+3x)(10y-3x) ]
Ответ:
Pairs of angles can be congruent by an angle bisector. Also two angles are congruent if they have the same measure. If two lines intersect, the vertical angles formed are congruent.