Consider the area shown below. the height of the triangle is 8 and the length of its base is 3. we have used the notation dh for δh. write a riemann sum for the area, using the strip shown and the variable  h:

sin3a=12/15

step-by-step explanation:

since one side was multiplied by 3 the other side must also be multiplied by 3.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

i hope this is what you were looking for.

see attached graph