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Zigmanuir [339]
3 years ago
15

❤️ i need this last question

Mathematics
1 answer:
spayn [35]3 years ago
4 0

Answer: 10\left(\cos90^{\circ}+i\sin90^{\circ}\right)

Step-by-step explanation:

Given

The complex number is z_1=0+10i

Complex number in polar form is given by

z=r\left(\cos \theta +i\sin \theta\right)

Compare it with the given complex number

r=10 and \sin \theta=1 which implies \theta must be 90^{\circ}

So, in the polar form, it is

z_1=10\left(\cos90^{\circ}+i\sin90^{\circ}\right)\\z_1=10e^{i\frac{\pi}{2}}

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