Write the explicit formula for the sequence 11,7.3,-1,-5.... ?
1 answer:
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Okay so if you first calculate triangle ABC
Then calculate triangle DAF + GEC
take ABC to minus the 2 triangles
Then calculate triangle DAF + GEC
take ABC to minus the 2 triangles
Check the picture below.
two twin sides stemming from a common corner will produce twin angles on the other end, which is what happens on any isosceles triangle, twin sides making twin angles at the base.
