Question

How do you solve this? ​

Answer 1

Answer:

i have no idea.....

Step-by-step explanation:

Answer 2

Answer:

sin(5x)

Step-by-step explanation:

Recall that the half angle identity relates the sine of half an angle to the square root of one minus the cosine of the angle as shown below:

$sin(\frac{\theta}{2} )=+/-\sqrt{\frac{1-cos(\theta)}{2} }$

therefore, in our case:

$sin(5\,x )=+/-\sqrt{\frac{1-cos(10\,x)}{2} }$

so, make sure you type the expression : "sin(5x)" in the provided text-box.