trig exam 5 questions

How to solve

1) Solve algrebically

2) cos(what) = __

3) write x = (radian that equals __) +2nπ

Solve the equation on the interval [0,2π)

1) find all values whiich cos = __

2) write each as 2x = (radian) +2nπ

3) solve for x

• divide both sides by 2, cancel out the 2s, & divde the fractional radian by 2

4) test each restriction (n = 0,1,2…) with the new fractional radian

5) write answer as “x = radian, radian, radian…”

solve the equation on the interval [0,2π)

1) move everything to one side

2) factor

3) set both equations to 0 & solve for sinx

4) find what radians equal the value of each sinx = __

5) write answer as “x = radian, raidan…”

solve the equation on the interval [0,2π)

1) convert sin2x using formula

2) factor

3) set both equations to 0 & solve for each sign

4) find what radians equal the value of each sinx/cosx = __

5) write answer as “x = radian, raidan…”

solve the equation on the interval [0,2π)

1) set both equations to 0 & solve for each sign

2) find what radians equal the value of each tanx/cosx = __

3) write answer as “x = radian, raidan…”

solve the equation on the interval [0,2π)

1) facor cosx

2) set both equations to 0 & solve for each sign

3) find what radians equal the value of each sinx/cosx = __

4) write answer as “x = radian, raidan…”

how to solve

1) convert x & y using formulas

2) factor r

3) solve for r

4) write answer “ r = ___”

how to solve

1) multipy r to both sides

2) use converstion formulas on both sides

3) move everything to one side & complete the sqaure

• b/2 = (__)²

• add (__)² to both sides

• write answer as “ (x ± b/2)² ± y² = (__)²