How to solve 3sin(x)=cos^2(x)?
#3sin(x)=2cos^2(x)# ?
2 Answers
Given:
Divide both sides of the equation by 2:
Substitute:
Add
Please observe that the above is a quadratic equation where sin(x) is the variable, therefore, we can use the quadratic formula:
The values for this condition are well known:
This repeats at integer multiples of
Explanation:
Here,
So,
Note:
If