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
Oduvanchick [21]
3 years ago
8

Help will mark brainliest

Mathematics
1 answer:
nlexa [21]3 years ago
8 0

Answer:

d

Step-by-step explanation:

You might be interested in
If tanA+sinA=m and tanA-sinA=n.prove that m^2-n^2=4√mn
mash [69]

Let a=\tan A and b=\sin A. Then

m^2-n^2=(a+b)^2-(a-b)^2=(a^2+2ab+b^2)-(a^2-2ab+b^2)=4ab

\implies m^2-n^2=4\tan A\sin A

and

mn=(a+b)(a-b)=a^2-b^2

\implies4\sqrt{mn}=4\sqrt{\tan^2A-\sin^2A}

The expression under the square root can be rewritten as

\tan^2A-\sin^2A=\dfrac{\sin^2A}{\cos^2A}-\sin^2A=\sin^2A\left(\dfrac1{\cos^2A}-1\right)=\sin^2A(\sec^2A-1)

Recall that

\sin^2A+\cos^2A=1\implies\tan^2A+1=\sec^2A

so that

\tan^2A-\sin^2A=\sin^2A\tan^2A

and assuming \sin A>0 and \tan A>0, we end up with

4\sqrt{\tan^2A-\sin^2A}=4\tan A\sin A

so that

m^2-n^2=4\sqrt{mn}

as required.

5 0
3 years ago
You are budgeting $26 a day per person for meals. your group has 4 people for 5 days. what is the meal budget total?
mezya [45]
$520
First, you multiply 26 by 4.
Then you multiply the product (104) by 5.
8 0
3 years ago
A parallelogram has coordinates A(1, 1), B(5, 4), C(7, 1), and D(3, -2). What are the coordinates of parallelogram A′B′C′D′ afte
Vika [28.1K]
A=(-1,-1)
B=(-5,-4)
C=(-7,-1)
D=(-3,2)
5 0
4 years ago
Write the equation of a line that is perpendicular to y = -2/3x + 1 and passes through (-6 , 4 ).
Mashcka [7]

Answer:

So your answer is x=0.

Step-by-step explanation:

8 0
2 years ago
Suppose U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} is the universal set and G = {1, 2, 3, 4, 5, 6, 7}. What is G?
Nesterboy [21]
Your posted question defines G, then asks what G is.
G is the set in the definition you gave.

G = {1, 2, 3, 4, 5, 6, 7}

_____
Perhaps you want to know the complement of G. That is all the elements of U that are not in G.

G' = {8, 9, 10}
3 0
3 years ago
Other questions:
  • Find the area of a circle with a circumference of 31.4 units.<br> help me please
    14·1 answer
  • Use the work shown below to find the simplified product
    8·2 answers
  • Answer these questions plzzzz I need help f
    13·1 answer
  • Help me plz it’s hard question
    13·1 answer
  • Where do the lines intersect?
    5·2 answers
  • 27+6+23+45+7^3+4+20^6
    14·1 answer
  • Is there a linear relationship between height and volume? Explain how you know.
    11·1 answer
  • Jenny has five exam scores of 79,66, 71, 89, and 84 in her biology class. What score does she need on the final exam to have a m
    14·2 answers
  • A committee must be formed with 5 teachers and 4 students. If there are 6 teachers to choose from, and 15 students, how many dif
    6·1 answer
  • HELP PLEASE I’ll make you brilliant
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!