Solution
Solution
+1
Degrees
Solution steps
Rewrite using trig identities
Use the Double Angle identity:
Solve by substitution
Let:
Write in the standard form
Solve with the quadratic formula
Quadratic Equation Formula:
For
Apply rule
Apply rule
Multiply the numbers:
Add the numbers:
Factor the number:
Apply radical rule:
Separate the solutions
Remove parentheses:
Add/Subtract the numbers:
Multiply the numbers:
Apply the fraction rule:
Cancel the common factor:
Remove parentheses:
Subtract the numbers:
Multiply the numbers:
Apply the fraction rule:
Apply rule
The solutions to the quadratic equation are:
Substitute back
General solutions for
periodicity table with cycle:
Solutions for the range
General solutions for
periodicity table with cycle:
Solutions for the range
Combine all the solutions
Popular Examples
Frequently Asked Questions (FAQ)
What is the general solution for cos(2x)+sin(x)=0,0<= x<= 2pi ?
The general solution for cos(2x)+sin(x)=0,0<= x<= 2pi is x=(7pi)/6 ,x=(11pi)/6 ,x= pi/2