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nydimaria [60]
3 years ago
12

Perform the indicated operation. (7 - 11i) + (-3 + 5i)

Mathematics
2 answers:
Temka [501]3 years ago
6 0
6i and 4 :))) hopefully u get it

grandymaker [24]3 years ago
6 0

Answer:

<u><em>4 - 6i</em></u>

Step-by-step explanation:

Perform the indicated operation.

(7 - 11i) + (-3 + 5i)

34

4 - 16i

<u><em>4 - 6i</em></u>

<u><em></em></u>

<u><em>Odyssey</em></u>

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Prove that : cos10° - sin10° / sin10° + cos10° = tan35°​
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Step-by-step explanation:

(cos 10° − sin 10°) / (cos 10° + sin 10°)

Rewrite 10° as 45° − 35°.

(cos(45° − 35°) − sin(45° − 35°)) / (cos(45° − 35°) + sin(45° − 35°))

Use angle difference formulas.

(cos 45° cos 35° + sin 45° sin 35° − sin 45° cos 35° + cos 45° sin 35°) / (cos 45° cos 35° + sin 45° sin 35° + sin 45° cos 35° − cos 45° sin 35°)

sin 45° = cos 45°, so dividing:

(cos 35° + sin 35° − cos 35° + sin 35°) / (cos 35° + sin 35° + cos 35° − sin 35°)

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(2 sin 35°) / (2 cos 35°)

Dividing:

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We have the following:

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