3 years ago

HELP FAST PLEASE!!! Show that sin(x+pi)=-sinx

2 answers:

7 0

Sin(a + b) = sin(a)cos(b) + sin(b)cos(a)
sin(x + pi) = sin(x)cos(pi) + cos(x)sin(pi)

sin(pi) = 0cos(pi) = -1

sin(x + pi) = sin(x)(-1) + cos(x)(0)
sin(x + pi) = -sin(x) + 0

I am Lyosha [343]3 years ago

6 0

Is it possible with only letters

You might be interested in

A cereal company produces about 1,000 boxes of cereal every day. Each box is supposed to contain 15

amm1812

Answer:

it is likely that 80 of the total boxes produced that day had more than 15.5 ounces of cereal.

Step-by-step explanation:

the answer is basically c.

8 0

4 years ago

The point-slope form of the equation of the line with a slope of - 2 and an x-intercept of - 1

zhenek [66]

Answer:

Step-by-step explanation:

Equation of line is y = mx + b

m is the slope = -2

b is the y intercept = -1

:- y = -2x - 1

5 0

3 years ago

The domain and range of all linear functions, with the exception of vertical and horizontal lines, is

Ede4ka [16]

Answer:

All real numbers

Step-by-step explanation:

Linear functions have a domain and range of all real numbers because they reach from -∞ to ∞ on the x-axis and y-axis.

An example is given below. The domain and range of the function are all real numbers.

5 0

3 years ago

FIRST ANSWER GETS BRAINLIEST !!!!

dexar [7]

Answer:

When you solve for y, you get y = 20.

Step-by-step explanation:

You isolate the variable by dividing each side of the equation by the number with the variable, therefore getting 20.

7 0

3 years ago

Read 2 more answers

HELP ME! THIS IS A DESPERATE HOUR! NEEDED WITHIN 15 MINS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Gnesinka [82]

Answer:

The answer is LB= 8 feet

Step-by-step explanation:

4 0

3 years ago