Solving and Graph

Which of the following is NOT an example of a conditional equation?

• cos x = 0

• 2 + 2cosx = 0

• $\sin2x\ =\ \sqrt{3}\cos x$

• $\cos^2x\ +2\cos x\ +\ 1\ =\ \left(\cos x\ +1\right)^2$

Trigonometric Equations that are true for all values of the domain of its variable .

• Trigonometric Equation

• Trigonometric Identity

• Identity Equation

• Conditional equation

It is half the difference of the maximum and minimum values of the function.

• Amplitude

• Period

• Phase Shift

• Vertical Shift

Which of the following is NOT an example of Conditional Equation?

• $7\cos x+12\ =\ 6\cos x\ +\ 13$

• $18\ \cos\ x\ =\ 9\sqrt{2}$

• $54\sin x\ =\ 0\$

• $1\ \ +\cos x\ =\ \cos\ x\ +\ 1$

Which of the following is one of the solution of

 $\sin2x\ =\ \sqrt{3}\cos x$  

• 60 degrees

• 210 degrees

• 360 degrees

• 135 degree

Find the exact solutions for 2 sin x - 2 = 0.

• 90 degrees

• 180 degrees

• 270 degrees

• 360 degrees

Find the exact solutions of

 $\cos x=\frac{\sqrt{3}}{2}$  

•  $30\degree\ and\ 330\degree$  

•  $150\degree\ and\ 210\degree$  

•  $60\degree\ and\ 330\degree$  

•  $150\degree\ and\ 330\degree$  

Which of the following is Not an example of an equation.

• 54sin x = 0

• x = 5 + y

• $\cos^2x\ +\ \sin x\ -\ 1$

• $8\ \cos\ x\ \ =\ 1\ +\ \sin x$

Which of the following is an example of an identity equation ?

• $\sin\ x\ =\ 0.5$

• $\sin\ x\ =\ \tan\ x\ \cos x$

• $\sin x\ \cos\ x\ =\ 1$

• $2\ +\ 2\ \cos\ x\ =\ 0$

 $Solve\ \ for\ the\ values\ of\ x\ if\$   $10\ \cos\ x\ =\ 5\sqrt{2}.$  

•  $45\degree$  

•  $45\degree\ and\ 315\degree$  

•  $135\degree$  

•  $135\degree\ and\ 225\degree$