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Practice — Complex numbers • The roots of unity

The roots of unity: check 1
Difficulty: ★★☆
3397
Info
M4U-EXT-QP-9231-FP2-T498-O1

Maths4U Original · Short practice

Find the roots of \(\displaystyle z^{3}= 14^{3}e^{\frac{i\pi }{2}}\). For angle answers use radians and arguments in [0,2π).

Find the common modulus of the roots.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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The roots of unity: review variant 1
Difficulty: ★★☆
3398
Info
M4U-EXT-QP-9231-FP2-T498-O1-V1

Maths4U Original · Short practice

Find the roots of \(\displaystyle z^{4}= 15^{4}e^{\frac{i\pi }{3}}\). For angle answers use radians and arguments in [0,2π).

Find the common modulus of the roots.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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The roots of unity: check 2
Difficulty: ★★☆
3399
Info
M4U-EXT-QP-9231-FP2-T498-O2

Maths4U Original · Short practice

Find the roots of \(\displaystyle z^{4}= 15^{4}e^{\frac{i\pi }{3}}\). For angle answers use radians and arguments in [0,2π).

Find the smallest nonnegative root argument.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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The roots of unity: review variant 2
Difficulty: ★★☆
3400
Info
M4U-EXT-QP-9231-FP2-T498-O2-V1

Maths4U Original · Short practice

Find the roots of \(\displaystyle z^{5}= 16^{5}e^{\frac{i\pi }{4}}\). For angle answers use radians and arguments in [0,2π).

Find the smallest nonnegative root argument.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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The roots of unity: check 3
Difficulty: ★★☆
3401
Info
M4U-EXT-QP-9231-FP2-T498-O3

Maths4U Original · Short practice

Find the roots of \(\displaystyle z^{5}= 16^{5}e^{\frac{i\pi }{4}}\). For angle answers use radians and arguments in [0,2π).

Find the angular spacing between successive roots.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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The roots of unity: review variant 3
Difficulty: ★★☆
3402
Info
M4U-EXT-QP-9231-FP2-T498-O3-V1

Maths4U Original · Short practice

Find the roots of \(\displaystyle z^{6}= 17^{6}e^{\frac{i\pi }{2}}\). For angle answers use radians and arguments in [0,2π).

Find the angular spacing between successive roots.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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The roots of unity: check 4
Difficulty: ★★☆
3403
Info
M4U-EXT-QP-9231-FP2-T498-O4

Maths4U Original · Short practice

Find the roots of \(\displaystyle z^{6}= 17^{6}e^{\frac{i\pi }{2}}\). For angle answers use radians and arguments in [0,2π).

Find the real part of the root with smallest nonnegative argument.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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The roots of unity: review variant 4
Difficulty: ★★☆
3404
Info
M4U-EXT-QP-9231-FP2-T498-O4-V1

Maths4U Original · Short practice

Find the roots of \(\displaystyle z^{3}= 18^{3}e^{\frac{i\pi }{3}}\). For angle answers use radians and arguments in [0,2π).

Find the real part of the root with smallest nonnegative argument.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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