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Ksenya-84 [330]
3 years ago
7

−7y−6y ​3 ​​ +2y+4y ​3 ​​ −5−1−2y ​3 ​​

Mathematics
1 answer:
xxMikexx [17]3 years ago
6 0
-7y - 6y³ + 2y + 4y³ - 5 -1 - 2y³ 

= -4y³ - 5y - 6        //Combine like terms.
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8 ft

Step-by-step explanation:

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Help!<br> What is the cost of 50 shares of stock priced at $15.87.
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$793.50, All you do is multiply $15.87 by 50
3 0
3 years ago
-845 degree coterminal angle
meriva
Check the picture below.

with negative angles, we go "clockwise", the same direction a clock hands move.

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so as you see in the picture, you go around twice, and then a little bit more, an extra 125°, landing you at -125°, or its positive counterpart, 235°.

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In cos(0.3), what unit would 0.3 be? Is it radians? Also if you were to solve it, would the answer be in radians as well? Please
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22

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Sin(x+y)-sin(x-y)/cos(x+y)+cos(x-y)=tany<br> how do i verify this?
dsp73

Answer:

Step-by-step explanation:

Numerator

sin

x

cos

y

+

cos

x

sin

y

−

[

sin

x

cos

y

−

cos

x

sin

y

)

=

sin

x

cos

y

+

cos

x

sin

y

−

sin

x

cos

y

+

cos

x

sin

y

=

2

cos

x

sin

y

Denominator

cos

x

cos

y

−

sin

x

sin

y

+

cos

x

cos

y

+

sin

x

sin

y

=

cos

x

cos

y

−

sin

x

sin

y

+

cos

x

cos

y

+

sin

x

sin

y

=

2

cos

x

cos

y

---------------------------------------------------------------

left side can now be expressed as

2

cos

x

sin

y

2

cos

x

cos

y

=

2

cos

x

sin

y

2

cos

x

cos

y

=

sin

y

cos

y

and  

sin

y

cos

y

=

tan

y

=

right side hence proved

7 0
3 years ago
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