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3 years ago

7

Please help! Thank youuuuu~

1 answer:

Korvikt [17]3 years ago

5 0

Look up "Everything You Need To Know About Math In One Big Fat Notebook pdf." It's the best thing I've ever been given, I have it with me in math class all the time and I've aced every test. I have it with me right now and it has everything I've ever been taught about math in it so it might help you.

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What is the range of function from y = 2x - 2 with the domain 1,2,3 ?

algol [13]

If the domain of <span>y = 2x - 2 is {1, 2, 3}, then the range has only three values:

2(1)-2=0
2(2)-2=2
2(3)-2=4

The range is {0,2,4}.</span>

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choli [55]

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3 years ago

Read 2 more answers

Help!!!! Question is attached in photo

goldfiish [28.3K]

ANSWER

$\tan( \alpha ) + \tan( \beta )$

EXPLANATION

The given identity is

$\frac{ \sin( \alpha + \beta ) }{ \cos( \alpha ) \cos( \beta ) }$

We expand the numerator to get:

$= \frac{ \sin\alpha \cos\beta + \sin\beta \cos \alpha }{ \cos( \alpha ) \cos( \beta ) }$

Split the numerator to obtain:

$= \frac{ \sin\alpha \cos\beta }{ \cos( \alpha ) \cos( \beta ) } + \frac{ \sin\beta \cos \alpha }{ \cos( \alpha ) \cos( \beta ) }$

Cancel the common factors:

$= \frac{ \sin\alpha }{ \cos( \alpha ) } + \frac{ \sin\beta }{ \cos( \beta ) }$

This simplifies to give us;

$= \tan( \alpha ) + \tan( \beta )$

The second choice is correct

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4 years ago