3 years ago

Pls help me with this question

1 answer:

7 0

Answer:

Step-by-step explanation:

(sin(2n) − 1) / (sin n − cos n)

-(1 − sin(2n)) / (sin n − cos n)

-(1 − 2 sin n cos n) / (sin n − cos n)

-(sin² n − 2 sin n cos n + cos² n) / (sin n − cos n)

-(sin n − cos n)² / (sin n − cos n)

-(sin n − cos n)

cos n − sin n

Limit as n approaches π/4 is 0.

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frutty [35]

Simplifying this, we get:
(x+4)(x-4) = 0
Now, to get 0, we can replace x for one of these things to make 0, so:
x can either be 4, or -4

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3 years ago

mixas84 [53]

Answer:

Step-by-step explanation:

$y^2=7*3\\y^2=21\\y^2=\sqrt{21}$

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Stels [109]

The answer is y=3x/7 +4

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Elena-2011 [213]

Answer: 3/7 and 12/15

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drek231 [11]

$\frac{1}{4}x+\frac{1}{6}x+\frac{1}{2}x+22=x|\cdot12\\
3x+2x+6x+264=12x\\
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$

I guess there's a mistake in the question.

6 0

3 years ago

Pls help me with this question ​