<em>Measure the length, width, and depth of an object in inches. ...
</em>
<em>Write the length of your object. ...
</em>
<em>Multiply the length by the width of your object. ...
</em>
<em>Multiply your answer by the depth of your object. ...
</em>
<em>Label your answer in cubic inches.</em>
There is a trig identity called the sum of 2 angles for sin its<span>
sin(a+b)=sin(a)cos(b)+cos(a)(sin(b)
</span>
You will need to use it. So in your question split the 4x in 2 equal parts 2x and 2x
<span>
</span><span>sin(4x)=sin(2x+2x)
</span>Now using the expansion above you will get
<span>sin(2x+2x)=sin(2x)×cos(2x)+cos(2x)×sin(2x)
</span>And it will simplify to
<span><span>2sin(2x)cos(2x)
I hope this helps you! Good luck :)</span></span>
A is (-3,-1) B is (3,-1) C is (-1,3)