rubendeanda02p1y63u rubendeanda02p1y63u

10-07-2019
Mathematics

contestada

Find all solutions to the equation sin(3x)cosx+sinx cos(3x)=0 on the interval [0,2pi]

a- x=0,pi/4,pi/2,3pi/4,pi,3pi/2,2pi
b- x=0,pi/2,pi,3pi/2,2pi
c- x=0,pi,2pi
d- x=0,pi/2,3pi/2

Respuesta :

mamatha8186 mamatha8186

10-07-2019

Answer:

Step-by-step explanation:

Please have in mind that sin(A - B) = sin(A)cos(B) - cos(A)sin(B)

So what we do is:

sin(3x)cos(x) - sin(x)cos(3x) = 0 => sin(3x - x) = 0

sin(2x) = 0

2x = 0, π, 2π, 3π, 4π

x = 0, π/2, π, 3π/2, 2π

Answer Link

Otras preguntas

What important events were taking place in the world during the time of the civil war?

During the ice ages, why were hunter-gather societies in much of europe unlikely to use large wood timbers for their dwellings?

Match each situation with a description. Tiles good study timing good study conditions bad study conditions bad study timing Pairs Melinda likes to watch TV whi

I don’t get this at alllllll

what’s the product of 6x-y and 2x-y+2

Write the difference 57 – (–38) as a sum. Then simplify.

Diego is playing basketball. While running at 7 km/h toward a basketball hoop, he throws the ball at the net. The ball travels at 20 km/h. What is the speed of

history question down below

In the reaction ______ H2 + N2 ----> 2 NH3, what coefficient should be placed in front of H2 to balance the reaction? a. 1 b. 2 c. 3 d. no coefficient is ne

Choose the mixed number that has not been reduced to simplest form. 4 2/5, 5 5/6, 5 7/12, 7 14/18