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
kolezko [41]
3 years ago
8

Sin(a+b).cos(a-b) = sinacosa + sinbcosb

Mathematics
1 answer:
Rainbow [258]3 years ago
4 0
Sin (A + B) = sin A cos B + cos A Sin B 
<span>Cos (A - B) = cos A cos B + sin A sin B </span>

<span>=> (SinACosB+ CosASinB) (CosACosB +SinASinB) </span>

<span>=>SinACosACos^2B+Sin^2ACosBSinB+Cos^2A... </span>

<span>=>SinACosA(Cos^2B+Sin^2B) +SinBCosB(Sin^2A+Cos^2A) </span>
<span>we know that Sin^2+Cos^2=1 </span>
<span>=>SinACosA(1)+SinBCosB(1) </span>
<span>=SinACosA+SinBCosB </span>
<span>Proved 

</span>
You might be interested in
HELP QUICK whats the domain and range of g(x)=√x-3+5
sertanlavr [38]

Answer:

check it..

Step-by-step explanation:

domain and range...

4 0
3 years ago
Which list shows these numbers In order from least to greatest?​
garik1379 [7]

Answer:

2,4,3,1

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Which answer shows a correct order to solve this story problem?
xeze [42]
The answer should be C
8 0
3 years ago
Read 2 more answers
Q8 Q16.) Write the form of the partial fraction decomposition of the rational expression. It is not necessary to solve for the c
allsm [11]
Answer is (A). For a term with an irreducible n-degree polynomial in the denominator, its numerator must have at most a polynomial of degree n-1.
4 0
3 years ago
Read 2 more answers
How many square feet of outdoor carpet will we need for this whole?
Black_prince [1.1K]
1/2((6)(3)). (6)(12). 72-9
1/2(18). 72. 63ft squared
9
7 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HURRY!!!!!!!
    14·2 answers
  • If 9 x 0 + 4 = 4 had parenthesis where would they go?
    12·2 answers
  • Fill in the blanks to make each equation true.
    6·2 answers
  • If y varies directly with x, the constant of variation is . The equation representing this relationship is . What is the value o
    10·1 answer
  • At your school, the building is 20 feet tall, a tree's height is 252 inches, and the flagpole is 6 yards high. Which of the thre
    9·1 answer
  • If z=4.0 and y= 7.2 what is the value of x?
    14·1 answer
  • The Foldgers Black Silk K-cup coffee pods weigh on average .28 ounces with a standard deviation of .05 ounces. Answer each of th
    9·1 answer
  • Guys please i beg you help me
    6·1 answer
  • What is the sum of the interior angle measures of a polygon that has 20 sides
    8·1 answer
  • 742.0352 find the tens, tenths, and thousandth place
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!