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matte hjelp

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Har et spm jeg sliter med, og trenger en dytt i riktig retning. Er mest ute etter hvordan det løses :)


*Sliter kun med C)*


Du har de komplekse tallene
z1 = 3 + 4i og z2 = 5 - i.

a) Bestem z1 + z2.
Fikk  8+3i

b) Skriv z1 * z2 på polar form.

Fikk Z=25,495 (cos41,32+i sin sin41,32)

c) Bestem arg z2.

Edited by FutureTalkshowHost

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