*shown in picture* I’ve been doing his for 20 minuets now and I can’t understand
1 answer:
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Since LM = AM, point M must be on the perpendicular bisector of AL. Since AM = BM, BL must be perpendicular to AL. This makes ∆ALC a right triangle with hypotenuse AC twice the length of side AL. Hence ∠LAC = ∠LAB = 60°, and AL is angle bisector, median, and altitude.
ΔABC is isosceles with ∠A = 120°, and ∠B = ∠C = 30°.
For two complex numbers 
and 
, the product is
That is, you multiply the moduli and add the arguments. You have
and 
, so the product is
That is, you multiply the moduli and add the arguments. You have