Which expression is equivalent to sin(0.6x) - sin (0.4x) ? a.) 2cos(0.5x) sin(0.1x) b.) 2cos(0.5x) cos(0.1x) c.) 2sin(0.5x) sin(0.1x) d.) -2sin(0.5x)sin(0.1x) e.) -2cos(0.5x) sin(0.1x)

Step-by-step explanation:

Given :sin(0.6x) - sin (0.4x)

To Find: which expression is equivalent to sin(0.6x) - sin (0.4x)

Solution:

Formula :

Now Using formula.

Hence  

So, Option B is true.

b.an increase in a causes b to decrease

step-by-step explanation:

the shape,the size and the distance