audawnt audawnt

13-02-2020
Mathematics

contestada

Cos(2x)cos(x)+sin(2x)sin(x)=1

Respuesta :

melkemk503 melkemk503

13-02-2020

Answer:

=cos(x) use basic properties of sosine (addition and subtraction) cos(a-b)=cos(a)cos(b)+sin(a)sin(b)

Answer Link

Otras preguntas

Escribe una oración usando el verbo TOMAR en el pretérito.

Help!! An object is moving at a speed of 3 yards per month. Express this speed in centimeters per day. Round your answer to the nearest tenth.

In 2016, a billionaire's net worth was approximately $3.6 x 109. That same year, it was reported that the average teacher salary was $45,000 per year. Using the

Simplify (1/2)^4.......................................................................

1 1/4+1 4/7 i need help like quickkkk

Help me solve this problem please

The perimeter of a triangle is 88. The sides have lengths d, e, and f. The ratio of e to d is 3:1, and the ratio of f to e is 10:9. list the length of the sides

Alien Periodic Table

HELP ASAP This is very hard

What property is shown in the statement? a + (b + 12) = (b + 12) + a