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
forsale [732]
2 years ago
9

Tan9 - tan27 - tan63 + tan 81 = ?

Mathematics
1 answer:
ludmilkaskok [199]2 years ago
8 0
Tan9−tan27−tan63−tan81
tan9+tan81−tan27−tan63
sin9/cos9+sin81/cos81−sin27/cos27−sin63/cos63
sin90/cos81cos9−sin90/cos63cos27
1/sin9cos9−1/sin27cos27
2/sin18−2/sin54
(2)sin54−sin18/sin18sin54
4cos36sin18/sin18cos36=4
You might be interested in
A rectangular garden is fenced on all sides with 278 feet of fencing. The garden is 9 feet longer than it is
JulijaS [17]
It’s 301 bc u add them together
6 0
3 years ago
Reduce the ratio 8/12 to the lowest terms
Tanya [424]
The answer is 2/3
I hope this works for you :)
5 0
3 years ago
What is the measure of angle ACB in this triangle
Mrrafil [7]
So, angles A and B added together is 130° which makes the whole angle = 180°-130°=50°

The answer is 180° because it is a supplementary angle and all supplementary angles equal 180° so, all the angles added makes 180°
7 0
3 years ago
What does "mean" mean in math terms
Vaselesa [24]
Answer: In math a mean is the simple mathematical average of a set of two or more numbers.

5 0
2 years ago
Find g−1(x) when g(x)=3/5x−9.
weqwewe [10]

Answer:

−(2x)/(5)−9

Step-by-step explanation:

Replace the function designators in g−1x

with the actual functions.

(3/5x−9)−1x

Simplify (3/5x−9)−1x

−(2x)/(5)−9

5 0
3 years ago
Other questions:
  • 42.85714 as a percent
    13·2 answers
  • Simplify: 19x – y – 2z + x + 5y + 2z
    14·1 answer
  • Given: <SPT = <RQT, ST = RT Prove: PR = QS​
    9·1 answer
  • What is the measure of angle B in degrees? A triangle has angles A, C, 51 degrees. Angle A has exterior angle B and angle C has
    14·1 answer
  • During a sale at the bookstore,books sold for $3 and magazines sold for $2.50.Jan spent $16 and bought a total of 6 books and ma
    15·2 answers
  • What is the perimeter of the triangle shown on the coordinate plane,to the nearest tenth of a unit ?
    9·1 answer
  • Please help this is due today!
    11·2 answers
  • Plzzzzzzzzzzzzzzzz help me I’ll mark you brainlist
    11·2 answers
  • Maricella solves for x in the equation 4 x minus 2 (3 x minus 4) + 4 = negative x + 3 (x + 1) + 1. She begins by adding –4 + 4 o
    9·2 answers
  • Logic and proof , need help asap
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!