Verify the identity.
startfraction sine 2 x plus sine 6 x over cosine 2 x plus cosine 6...
![subject](/tpl/images/cats/mat.png)
Mathematics, 14.11.2019 20:31 ecolifesfsu4949
Verify the identity.
startfraction sine 2 x plus sine 6 x over cosine 2 x plus cosine 6 x endfraction equals tangent left parenthesis 4 x right parenthesissin2x+sin6xcos2x+cos6x=t an(4x)
start with the numerator of the left side and apply the appropriate formula of? sum-to-product.
sine 2 x plus sine 6 xsin2x+sin6xequals=sine left parenthesis 8 x right parenthesissin(8x)
? (do not? simplify.)
now use the? sum-to-product formula on the denominator of the left side.
cosine 2 x plus cosine 6 xcos2x+cos6xequals=2 cosine left parenthesis 2 x right parenthesis cosine left parenthesis 4 x right parenthesis2cos(2x)cos(4x)
? (do not? simplify.)
in the numerator and? denominator, substitute the expressions found in previous steps. apply an appropriate identity to simplify the expressions.
startfraction nothing over nothing endfraction
? (simplify your? answer.)the fraction from the previous step then simplifies to
tangent left parenthesis 4 x right parenthesistan(4x)
using? what?
a.
pythagorean identity
b.
reciprocal identity
c.
even-odd identity
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 14:30
Jack lives on a farm and has a large backyard. the area of his rectangular backyard is of a square mile. if the width of the yard is of a mile, what fraction of a mile is the length of the rectangular backyard?
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:30
David must install fencing around a lot that is shaped like a right angle.the side of lot that runs east-west is 200 ft long.the side of the lot runs north-south is 125 ft long.calculate how many feet of fencing he will need to surround the entire lot.
Answers: 2
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:00
Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/en.png)
English, 16.12.2020 19:00
![question](/tpl/images/cats/istoriya.png)
History, 16.12.2020 19:00
![question](/tpl/images/cats/en.png)
English, 16.12.2020 19:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 16.12.2020 19:00
![question](/tpl/images/cats/fr.png)
![question](/tpl/images/cats/en.png)
English, 16.12.2020 19:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.12.2020 19:00
![question](/tpl/images/cats/himiya.png)
Chemistry, 16.12.2020 19:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.12.2020 19:00
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.12.2020 19:00