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
Sedbober [7]
3 years ago
11

Show that sin( + 180°) + 2 cos( − 360°) − sin( − 180°) = 2x

Mathematics
1 answer:
den301095 [7]3 years ago
8 0

Answer:

Example 1: Change sin 80° cos 130° + cos 80° sin 130° into a trigonometric function in ... Example 2: Verify that cos (180° − x) = − cos x ... Example 7: Verify that sin (360° − x) = − sin x.

You might be interested in
The sum of b and 6 is 19
valentina_108 [34]

Answer:

b+6=19

Step-by-step explanation:

by the words you can write your equation if you are looking to solve your answer would be 13

5 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!
svet-max [94.6K]

Answer:

tan (C) = 2.05

Step-by-step explanation:

Given:

A right angled triangle CDE right angled at ∠D.

Side CD = 39

Side DE = 80

Side CE = 89

We know, from trigonometric ratios that, the tangent of any angle is equal to the ratio of the opposite side to the angle and the adjacent side of the angle.

Therefore, tangent of angle C is given as:

\tan(\angle C)=\frac{DE}{CD}

Plug in the given values and solve for angle C.This gives,

\tan(\angle C)=\frac{80}{39}\\\\\tan(\angle C)=2.051\approx 2.05(Rounded\ to\ nearest\ hundredth)

Therefore, the measure of tangent of angle C is 2.05.

4 0
3 years ago
If the mesure of angle
NISA [10]

Answer:

where is the figure to denote angles??

5 0
2 years ago
Read 2 more answers
2y = 3x + 4<br> 2x = -3y - 7
anygoal [31]

Answer:

x= -2.........&.........y= -1

Step-by-step explanation:

(x,y)=(-2,-1)

7 0
2 years ago
Without actually writing the formula, explain how to expand (x + 3)7 using the binomial theorem.
Lyrx [107]

To write the coefficients of the 8 terms, either start with a combination of 7 things taken 0 at a time and continue to 7 things taken 7 at a time or use the 7th row of Pascal’s triangle.

For the first term, write x to the 7th power and 3 to the 0 power. Then decrease the power on x and increase the power on y until you reach x to the 0 and y to the 7.

Simplify by evaluating the coefficients and powers 3

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • PLZ HELP 100PTS!!!!!!!!!!!
    11·2 answers
  • The length of a rectangular field is 3 more than twice the width. the farmer would like to divide the field into four equal encl
    7·1 answer
  • 9,443 the 4 in the tens place is blank the value of the 4 in the hundreds place
    11·1 answer
  • Suppose that 30% of students prefer to write with a mechanical pencil. suppose we sample students, one at a time, and stop as so
    13·1 answer
  • Is the inverse of a function always a function?
    11·2 answers
  • Divide. Write the quotient in lowest terms.<br> 11-13
    9·1 answer
  • Which of the following circles would have the same arc length of AB?​
    13·2 answers
  • Help asap ill mark brainliest
    11·2 answers
  • Find the surface area of the rectangular prism.<br> 4 mi<br> 5 mi<br> 4 mi
    6·1 answer
  • Determine if the set is well defined or not well defined.<br> The set of U.S. cities
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!