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
katen-ka-za [31]
3 years ago
8

Complete the identity, sin(a+b)/cosacosb=​

Mathematics
1 answer:
8090 [49]3 years ago
5 0

Answer:

tana + tanb

Step-by-step explanation:

Using the trigonometric identities

• sin(a + b) = sinacosb + cosasinb

• tanx = \frac{sinx}{cosx}, then

\frac{sin(a+b)}{cosacosb}

= \frac{sinacosb+cosasinb}{cosacosb}

= \frac{sinacosb}{cosacosb} + \frac{cosasinb}{cosacosb}

= \frac{sina}{cosa} + \frac{sinb}{cosb}

= tana + tanb

You might be interested in
John's father is 2 m tall how many centimeters is John's father (please let me know!)<br>​
Eddi Din [679]
There are 100 cm in a meter, so John's father would be 200 cm tall.
5 0
3 years ago
Solving system by substitution x=3y+11, 2x-3y=16
grin007 [14]
Input 3y+11 for x

2(3y+11)-3y=16
6y+22-3y=16
3y= -6
Divide by 3 to isolate y
y=-2

Now for x....

x=3(-2)+11
=-6+11
=5
x=5

Coordinates (5,-2)
5 0
3 years ago
Read 2 more answers
What interest rate would produce an<br>interest amount of $450 if you invest $4800 for 5.5 years?​
V125BC [204]

Answer:

Im in 7th grade and I need some help on a math problem. can I post it?

3 0
3 years ago
Como resolver una fraccion heterogeneas de suma de 1/4 y 1/8
babunello [35]
I can’t understand because I speak English
6 0
3 years ago
How many liters of 10% alcohol solution and 5% alcohol solution must be mixed to obtain 40 liters of 8%
Likurg_2 [28]

Answer:

x+y=40liters

10%x+5%y=8%×40

(2x+y)/20=8%×40

(2x+y)=64

x=24

y=16

4 0
3 years ago
Other questions:
  • What is the multiplicative inverse of -27 and what is the multiplicative inverse for 7/9 and -9/16
    10·1 answer
  • Vance used the associative property to write (4.5m+7/8)-9 as the equivalent expression 4.5(7/8-9). Did Vance apply the associati
    11·2 answers
  • To win a loto in one state, one must correctly select 7 numbers from a collection of 48 numbers (1 through 48). The order in whi
    15·1 answer
  • between 9 p.m. and 6:36 a.m.​, the water level in a swimming pool decreased by 6/25. assuming that the water level decreased at
    10·1 answer
  • I just wrote a formal email to my teacher. What do you think their response was?
    10·2 answers
  • The right triangle on the right is a scaled
    14·1 answer
  • At a​ little-known vacation​ spot, taxi fares are a bargain. A 16​-mile taxi ride takes 18 minutes and costs ​$14.40. You want t
    9·1 answer
  • How do I solve these problems?
    14·1 answer
  • What is the sum of x^2 - 3x + 7 and 3x^2 + 5x - 9
    8·1 answer
  • Charlie is watching hot air balloons. balloon a has risen at a 50° angle. balloon b has risen at a 78° angle. if the distance fr
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!