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Free_Kalibri [48]
3 years ago
9

(-7+7i)-(-7-3i)+(-7-8i) i need help

Mathematics
1 answer:
butalik [34]3 years ago
3 0

Answer:

Step-by-step explanation:

(-7 + 7i) - (-7 -3i) + (-7 - 8i) = -7 + 7i -7*(-1) -3i*(-i) - 7 - 8i

                  = -7 + 7i + 7 + 3i - 7 - 8i

                   = -7+ 7 - 7 + 7i +3i - 8i

Combine like terms

                  =  - 7 + 2i

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Suppose KLMN is a parallelogram, and that the bisectors of ∠K and ∠L meet at A. Prove that A is equidistant from LM and KN.
Neporo4naja [7]

Answer:

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Given KLMN is a parallelogram, and that the bisectors of ∠K and ∠L meet at A. we have to prove that A is equidistant from LM and KN i.e we have to prove that AP=AQ

we know that the diagonals of parallelogram bisect each other therefore the the bisectors of ∠K and ∠L must be the diagonals.

In ΔAPN and ΔAQL

∠PNA=∠ALQ    (∵alternate angles)  

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