waguihmina waguihmina

01-01-2021
Mathematics

contestada

how to prove that
[tex] \cos( \alpha ) = \frac{1}{2} ( {e}^{i \alpha } + {e}^{ - i \alpha } )[/tex]

Respuesta :

goldenpoo21 goldenpoo21

01-01-2021

First you need to do is solve a by simplifying both sides.
After you’ve done that you would need to keep the variable alone.
e
i
a
2
+
e
−
i
a
2
−
cos
(
a
)
=
0

Answer Link

Otras preguntas

ANSWER FAST: W over -5 = negative 7

Which is the best definition of figurative language? A. language that focuses reader attention on the shapes or figures of objects being described B. informal

measure of an interior angle of a regular pentacontakaitrigon

Given: 7/2x < 5. Choose the solution set.

Many times the media will broadcast images that can lead to __________. A. negative self-esteem B. an accurate view of reality C. realistic expectations D. a po

Each week, Mr.Jones goes to the grocery store.Mr.jones estimates that he will spend $120 when he goes to the grocery store this week. He actually spends $94.

What form of democracy are most democracies in large industrialized nations?

I WILL UPVOTE ALL ANSWERS Which sentence is an example of faulty logic? A) Requiring service hours would also be a good move for high school’s reputation among

In ____ memory allocation, each process partition has its own offset value.

the measure of one angle is describe as twelve more than four