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

Find the smallest positive integer that should be added to 1500 to make it a perfect square.

What is the revisit interval of Landsat 7? a) 8 days b) 16 days c) 1 day d) 12 hours

How should you position the hands when assuming parade rest?

Estimate the value of the convergent series sum_(n=1)^( infty ) (9(-1)ⁿ)/((2n)!) by adding up the minimum amount of terms to ensure an absolute error less than

() = ( − )( − ) The function is defined above, where and are integer constants. If (1) > 0, (4) < 0, and (7) > 0, what is one possible value of + ?

Find the limit as t approaches 3 from the right of ((t² + 3t - 18)/(t - 3)).

Solve the following radical equation. If needed, write your answer as a fraction reduced to lowest terms. √(20-6x) - √(3x+1) = 0

A jar of tea is placed in sunlight until it reaches an equilibrium temperature of 33.8°C. In an attempt to cool the liquid, which has a mass of 168 g, 140 g of

Sandra picked 7/10 of a plant's strawberries. She made a pot of jam which used 2/5 of the strawberries. What fraction of the plant's strawberries went into the

You have read the passage from True to Himself, in which a brother and sister, Roger and Kate, work to overcome the loss of their mother and the arrest of their