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
erastovalidia [21]
3 years ago
15

Which basic trigonometric identity would you use to verify that tan x cos x =sin x

Mathematics
1 answer:
True [87]3 years ago
7 0

Answer:

\huge\boxed{\tan x=\dfrac{\sin x}{\cos x}}

Step-by-step explanation:

\tan x\cos x=\sin x\\\\\tan x=\dfrac{\sin x}{\cos x}\\\\\text{Therefore}\\\\\tan x\cos x=\dfrac{\sin x}{\cos x}\cdot\cos x\qquad\text{cancel}\ \cos x\\\\\tan x\cos x=\sin x\\\\\text{For}\ x\neq\dfrac{\pi}{2}+k\pi},\ k\in\mathbb{Z}

You might be interested in
Which statement best describes the zeros of the function F(x) = (x-6)(* + 8x + 16)?
Alenkinab [10]

Answer: apply the distributive property to factor out the greatest cmoon factor of alll three terms

Step-by-step explanation: apply the distributive property to factor out the greatest cmoon factor of alll three terms

3 0
2 years ago
5/2.35 = x/12<br> what does x=
postnew [5]

Answer:

x = \frac{60}{2.35} or x = 25.531...

Step-by-step explanation:

<u>Step 1:  Cross Multiply</u>

<u />\frac{5}{2.35} = \frac{x}{12}

5(12) = 2.35(x)

60 = 2.35x

<u>Step 2:  Divide both sides by 2.35</u>

<u />60 / 2.35 = 2.35x / 2.35

x = \frac{60}{2.35} or x = 25.531...

Answer:  x = \frac{60}{2.35} or x = 25.531...

5 0
3 years ago
A zombie lost 3 limbs each day for 4 days. How many limbs did the zombie lose in total
ivann1987 [24]

Answer:

12 would be your answer.

Step-by-step explanation:

There were 4 days and the zombie lost 3 limbs each of those 4 days so 3×3×3×3=12 or 3×4=12. I hope this helps you : )

7 0
3 years ago
Jessica is selling books during the summer to earn money for college. She
labwork [276]

Answer:

D

Step-by-step explanation:

I am confused but thats my guess

4 0
1 year ago
This is flipping a figure over the axis of symmrtry
fgiga [73]

Answer:

Step-by-step explanation:

FSDGGHJKL

4 0
3 years ago
Other questions:
  • Q is the midpoint of PR R is the midpoint of QS Prove: PR = QS
    13·1 answer
  • I will give you 10B points plus mark someone again for the Brainliest if you get this right. a:15 b:7 c:4
    12·1 answer
  • What percent is a 26.17 out of 34?
    12·1 answer
  • Jim and his friends are celebrating Jim's birthday at Adventure Zone, which has trampolines, mini golf, laser tag, and an arcade
    14·2 answers
  • A hyperbola has vertices (5,0) and (-5,0). Its
    15·1 answer
  • Exponential growth and decay functions are written in standard form F (t)= A_0•b^kt, where A_0 is an initial amount, b is the gr
    12·2 answers
  • A car depreciates each year in value after purchasing. When you bought a car in 2017, it was worth$12,500. Now in 2020, the car
    14·1 answer
  • PLEASE HELP!!! ILL GIVE BRAINLIEST !! Which is the correct answer ?
    13·2 answers
  • Match the two numbers with their least common multiple (LCM). (6 points)
    10·1 answer
  • The annual fundraising goal of a sports team is 100,000. So far 56,359 has been raised. How much more money is needed to reach t
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!