All categories

3 years ago

I need an answer to this asap... please ....just number 3

Mathematics

2 answers:

Agata [3.3K]3 years ago

7 0

Answer:

hence cos ( 2 A ) = cos 2 A − ( 1 − cos 2 A ) = 2 cos 2 A − 1

Step-by-step explanation:Well we know that for two angles A , B

it holds that cos ( A + B ) = cos A cos B − sin A ⋅ sin B hence for A = B you get cos ( 2 A ) = cos 2 A − sin 2 A But sin 2 A = 1 − cos 2 A

SIZIF [17.4K]3 years ago

3 0

Answer:

is writing an answer

Step-by-step explanation:

You might be interested in

Inequality n < -5<br> HELPPP ASAPPP

ale4655 [162]

Answer:

please give me a brainless 0

Inequality :

α1+(n−1)a−(⌊n÷m⌋×(a−b))≥x

The following is as far as I get:

α1+(n−1)a−(⌊n÷m⌋×(a−b))≥x

(n−1)a−(⌊n÷m⌋×(a−b))≥x−α1

n−1−(⌊n÷m⌋×(a−b))≥x−α1a

n−(⌊n÷m⌋×(a−b))≥x−α1a + 1

Step-by-step explanation:

3 0

3 years ago

Sherlock Holmes was sitting comfortably on an armchair on a snowy day. Dr. Watson was sitting beside him reading a book near the

ladessa [460]

The riddle given by Dr. Watson to Sherlock Holmes is:

217 is to 335
896 is to 543
345 is to ____

We need to find the missing number of the third pair of the riddle. This is a ratio and proportion problem.

217/ 335 = 896/ 543 = 345 / x

The value of x is 209.

8 0

3 years ago

Which letter had atleast 1 line of symmetry

CaHeK987 [17]

Answer:

Step-by-step explanation:

The letter A has at least 1 line of symmetry

6 0

2 years ago

Read 2 more answers

What are the roots of this quadratic equation?

pickupchik [31]

Answer:

Step-by-step explanation:

im the best in the world

5 0

1 year ago

Using the formula for initial velocity h=-16t2+VT the height of any object can be found by the time, Annalee serves a volleyball

Zolol [24]

Answer:

evvvvvvvvv

Step-by-step explanation:

errrrrrrrrrrrrrrv

5 0

2 years ago