1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anestetic [448]
3 years ago
8

Write each expression in terms of sines and/or cosines and then simplify.

Mathematics
1 answer:
Sedaia [141]3 years ago
8 0
Tan(x)= sin(x)/cos(x), therefore, substitute sin(x)/cos(x) in the expression:
=(cos(x)(sin(x)/cos(x))-1)/cos^2(x)
simplify the 2 cos(x):
=(sin(x)-1)/cos^2(x)
Sin^2(x)+ cos^2(x)=1, sin^2(x)-1=- cos^2(x), substitute in the expression:
= -cos^2(x)/cos^2(x)= -1
You might be interested in
Please help me with the Math. Thx in advance! <br> Number's 8-11. THANK YOU!
Stella [2.4K]
8 :=7
9= 2/3
10=3/20
11=4
8 0
2 years ago
Read 2 more answers
NEED ANSWERS QUICKLY! CORRECT ANSWER GETS BRAINLIEST
dolphi86 [110]

Answer/Step-by-step explanation:

Quotient is simply the ratio of the first numerator to the second numerator:

Let's \frac{x_1}{y}\;and\;\frac{x_2}{y} are two fractions in same terms.

Thus, \frac{x_1}{y}\div\frac{x_2}{y} {Divided by a fraction is equal to multiplied by its reciprocal}

=\frac{x_1}{y}\times\frac{y}{x_2}

Quotient is simply the quotient of their numerators.

Example could be:

\frac{2}{7}\div\frac{3}{7}

\frac{2}{7}\times\frac{7}3}

\frac{2}{3}

2 is first numerator and 3 is the second numerator.

<u><em>~lenvy~</em></u>

3 0
2 years ago
PLZ HELP ASAP
zubka84 [21]

Here we go.

1) x/5 - 4h = 35

2) {(6-p)/3}+8

3) This is just 1.4k, since the distance you're trying to find is 1.4 times k feet.

You can include a diagram easily enough. Just draw a baseball diamond and two lines, one connecting first and third base and labeled 1.4k, while the other line, connecting home to third, is labeled k.


Hope that helped!

8 0
3 years ago
Help please
yawa3891 [41]

Answer:

C. 4.6

Step-by-step explanation:

If you subtract 3.0 from 1.4 you get 1.6, which is the can be added to 3.0 to find the missing value.

8 0
3 years ago
A box of spaghetti at the grocery store is purchased for $1.60 wholesale and is marked up by 60 percent. Then, the store marks d
Nata [24]

Answer:

the answer is $8.29

Step-by-step explanation:

1.60 marked up by 60% in decimal form is .60

multiply that .60 by 1.60 and you get .64

you add .64 to 1.60 and you get 2.56

you multiply 2.56 by 3 and you get 7.68

you have a 8% sales tax so you multiply 0.08 by 7.68

you will get .61 you add that to 7.68 to get $8.29

4 0
3 years ago
Read 2 more answers
Other questions:
  • What x^2 x 3x + 1000x please help
    5·1 answer
  • Complete 135,000mg to kg
    10·2 answers
  • which expression represents the perimeter of the rectangle above? (3x-3)(3x-1) a.6x+2 b.12x-8 c.6x-4 d.12x+2
    15·2 answers
  • Need help with these two questions please
    10·1 answer
  • Solve by using the square root property. Write your answer in simplest radical form.
    14·2 answers
  • Alright one more question<br> whoever can answer this and the next question wins brainliest
    10·1 answer
  • What is the sum of the measures of the angles of this 9-sided polygon?
    5·2 answers
  • Find a polynomial of the specified degree that has the given zeros. Degree 4; zeros −1, 1, 4, 5 P(x) =
    12·1 answer
  • You can earn 1 coin<br> 2)<br> Fill in the blank.<br> 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 =<br> x8
    15·2 answers
  • Someone help and please answer it fully
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!