All categories

2 years ago

Cos 4A - cos 4B = 8(cos A - cos B) (cos A +cos B) (cos A - sin B) (cos A + sin B)

Mathematics

1 answer:

sveta [45]2 years ago

3 0

.....................

You might be interested in

1/4( x - 1 ) + 3x = 2 solve the equation

Dmitriy789 [7]

The answer is x = 9/13
Hope in helped

3 0

2 years ago

3+7(0.7+1.3) What is the answer and how to solve it?

quester [9]

When you see this kind of question use « BODMAS »
1.Add the 2 digits which is 3+7=10
2.Add the digits inside which is 0.7+1.3=2
3.Add the inside and outside
3+7(0.7+1.3)
10(2)=20

5 0

2 years ago

6. Describe a pattern shown in this sequence, and use the pattern to find the next two terms.

nlexa [21]

Answer:

The pattern is that each time, 8 is added. The next 2 numbers are 47, 55.

Step-by-step explanation:

7+8=15

15+8=23

23+8=31

31+8=39

39+8=47

47+8=55

7 0

2 years ago

What's is the slope of this line? Need this ASAP

Basile [38]

Answer:

$\displaystyle m=2$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Reading a Cartesian Plane

Coordinates (x, y)

Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (0, 3)

Point (1, 5)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute in points [Slope Formula]: $\displaystyle m=\frac{5-3}{1-0}$
[Slope] Subtract: $\displaystyle m=\frac{2}{1}$
[Slope] Divide: $\displaystyle m=2$

5 0

2 years ago

Please help it’s urgent!! Find the sine, cosine and tangent of angle B. Leave answers as reduced fractions.

BigorU [14]

Answer:

sin(B) = 4/5

cos(B) = 3/5

tan (B) = 4/3

Step-by-step explanation:

soh cah toa

5 0

2 years ago

Read 2 more answers