A trig identity is <span>asinucosu=<span>a/2</span>sin(2u)</span>So you can write your equation as<span>y=sin(x)cos(x)=<span>1/2</span>sin(2x)</span>Use the crain rule here<span><span>y′</span>=<span>d/<span>dx</span></span><span>1/2</span>sin(2x)=<span>1/2</span>cos(2x)<span>d/<span>dx</span></span>2x=cos(2x)</span>The curve will have horizontal tangents when y' = 0.<span><span>y′</span>=0=cos(2x)</span>On the interval [-pi, pi], solution to that is<span><span>x=±<span>π4</span>,±<span><span>3π</span>4</span></span></span>
Answer
I guess it my be 8. can you try it ?
Step-by-step explanation:
I’m pretty sure the answer is A I hope that helps :)
12x40=480
You can first multiply 12x4=48 and then you could put a zero next to the 8
Answer:
7 songs
Step-by-step explanation:
12+15+11 is 38
45-38 is 7.
