Solution
Solution
+1
Degrees
Solution steps
Square both sides
Subtract from both sides
Rewrite using trig identities
Use the Pythagorean identity:
Simplify
Solve by substitution
Let:
Write in the standard form
Solve with the quadratic formula
Quadratic Equation Formula:
For
Apply rule
Apply rule
Apply radical rule: assuming
Separate the solutions
Remove parentheses:
Add/Subtract the numbers:
Multiply the numbers:
Apply the fraction rule:
Apply rule
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:
General solutions for
periodicity table with cycle:
Solve
Combine all the solutions
Verify solutions by plugging them into the original equation
Check the solutions by plugging them into
Remove the ones that don't agree with the equation.
Check the solution True
Plug in
For plug in
Refine
Check the solution False
Plug in
For plug in
Refine
Check the solution True
Plug in
For plug in
Refine
Popular Examples
5cos(x)-3sin(x)=414.79m=((7.61_{0}^2sin(2θ_{0}))/g)2cos(x)+3cos(x)-2=0sec((5θ)/4)=2,[0.2pi]cos(x)+|cos(x)|=1,-2pi<= x<= 2pi
Frequently Asked Questions (FAQ)
What is the general solution for sin(θ)=sqrt(1-(1-(cos(θ)-1)^2)) ?
The general solution for sin(θ)=sqrt(1-(1-(cos(θ)-1)^2)) is θ= pi/2+2pin,θ=2pin