96 is the answer i beilive
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>
2/3 x 21 is correct because 21 is bigger than 15
I think they the answer for that problem is………….1
Answer:
Step-by-step explanation:
It should be pi (1.5^2)3/3
or (3.14)(1.5^2)(1)
because 3 is the diameter and 1.5 is the radius and for cones you have to divide the height by 3
