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Mathematics, 09.07.2019 05:50 aislamgomes22
Ihave a quation about functions. so i have 2 over -7 times (x+4) ik it becomes 2/-7x but what happens to the 4 does it turn into 8/-7 or what?
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Here is their argument. given the obtuse angle x, we make a quadrilateral abcd with ∠dab = x, and ∠abc = 90◦, and ad = bc. say the perpendicular bisector to dc meets the perpendicular bisector to ab at p. then pa = pb and pc = pd. so the triangles pad and pbc have equal sides and are congruent. thus ∠pad = ∠pbc. but pab is isosceles, hence ∠pab = ∠pba. subtracting, gives x = ∠pad−∠pab = ∠pbc −∠pba = 90◦. this is a preposterous conclusion – just where is the mistake in the "proof" and why does the argument break down there?
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Ihave a quation about functions. so i have 2 over -7 times (x+4) ik it becomes 2/-7x but what happen...
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