Solution
Solution
+1
Degrees
Solution steps
Rewrite using trig identities
Use the Double Angle identity:
Apply exponent rule:
Add the numbers:
Factor
Factor out common term
Solving each part separately
General solutions for
periodicity table with cycle:
Solve
No Solution
Solve by substitution
Let:
Move to the right side
Subtract from both sides
Simplify
Divide both sides by
Divide both sides by
Simplify
For the solutions are
Simplify
Apply radical rule:
Apply imaginary number rule:
Simplify
Simplify
Apply radical rule:
Apply imaginary number rule:
Substitute back
No Solution
No Solution
Combine all the solutions
Combine all the solutions
Popular Examples
cos(2x)+cos(x)=1+sin(2x)-sin(x)-sin(θ)+2sin^2(θ)=0-sec(x)+sqrt(2)sec(x)cos(x)=02tan(x)-3sin(x)=0sin(x)+5=4
Frequently Asked Questions (FAQ)
What is the general solution for sin(2x)cos(x)+sin(x)=0 ?
The general solution for sin(2x)cos(x)+sin(x)=0 is x=2pin,x=pi+2pin