Exam 33: Solving Trigonometric Equations

arrow
  • Select Tags
search iconSearch Question
  • Select Tags

Use inverse functions where needed to find all solutions of the equation in the interval [0,2π).​ csc2x7cscx=0\csc ^ { 2 } x - 7 \csc x = 0

(Multiple Choice)
4.8/5
(44)

Using the grid provided,sketch the graph of the given function in the interval (-5,5)and then determine the x-intercepts,if any. y=sin(πx2)1y = \sin \left( \frac { \pi x } { 2 } \right) - 1  Using the grid provided,sketch the graph of the given function in the interval (-5,5)and then determine the x-intercepts,if any.  y = \sin \left( \frac { \pi x } { 2 } \right) - 1       Using the grid provided,sketch the graph of the given function in the interval (-5,5)and then determine the x-intercepts,if any.  y = \sin \left( \frac { \pi x } { 2 } \right) - 1

(Multiple Choice)
4.9/5
(38)

Use a graphing utility to approximate the solutions (to three decimal places)of the given equation in the interval [0,2π).​ sin2x+1.5cosx=0\sin 2 x + 1.5 \cos x = 0

(Multiple Choice)
4.8/5
(39)

Solve the following equation.​ 12sec2x16=012 \sec ^ { 2 } x - 16 = 0

(Multiple Choice)
4.9/5
(41)

A weight is oscillating on the end of a spring (see figure).The position of the weight relative to the point of equilibrium is given by y=112(cos7t3sin7t)y = \frac { 1 } { 12 } ( \cos 7 t - 3 \sin 7 t ) ,where y is the displacement (in meters)and t is the time (in seconds).Find the times when the weight is at the point of equilibrium (y = 0)for 0t10 \leq t \leq 1 .​  A weight is oscillating on the end of a spring (see figure).The position of the weight relative to the point of equilibrium is given by  y = \frac { 1 } { 12 } ( \cos 7 t - 3 \sin 7 t )  ,where y is the displacement (in meters)and t is the time (in seconds).Find the times when the weight is at the point of equilibrium (y = 0)for  0 \leq t \leq 1  .​   ​ ​ ​ ​

(Multiple Choice)
4.8/5
(39)

Solve the following equation.​ 2sin2x=6cos2x2 \sin ^ { 2 } x = 6 \cos ^ { 2 } x

(Multiple Choice)
4.8/5
(40)

Solve the following equation.​ cos2x+cosx=0\cos ^ { 2 } x + \cos x = 0

(Multiple Choice)
4.8/5
(35)

Use a graphing utility to graph the function.​ f(x)=1.1(2sinx+cos2x)f ( x ) = 1.1 ( 2 \sin x + \cos 2 x )

(Multiple Choice)
4.8/5
(38)

Find all solutions of the following equation in the interval [0,2π).​ 15tan3x=5tanx15 \tan ^ { 3 } x = 5 \tan x

(Multiple Choice)
4.8/5
(41)

The horizontal distance d (in feet)traveled by a projectile with an initial speed of v feet per second is modeled by d=v232sin2θd = \frac { v ^ { 2 } } { 32 } \sin 2 \theta , where θ is the angle at which the projectile is launched. Find the horizontal distance traveled by a golf ball that is hit with an initial speed of 80 feet per second when the ball is hit at an angle of θ=60\theta = 60 ^ { \circ } .Round to the nearest foot.

(Multiple Choice)
4.8/5
(33)

Use a graphing utility to graph the function.​ f(x)=5(sin2x+cosx)f ( x ) = 5 \left( \sin ^ { 2 } x + \cos x \right)

(Multiple Choice)
4.8/5
(33)

Find all solutions of the following equation in the interval [0,2π).​ sin3x=sinx\sin ^ { 3 } x = \sin x

(Multiple Choice)
4.7/5
(38)

Find all solutions of the following equation in the interval [0,2π).​ sinx3=cosx3\sin x - 3 = \cos x - 3

(Multiple Choice)
4.8/5
(34)

Use a graphing utility to graph the function.​ f(x)=2(sinxcosx)f ( x ) = 2 ( \sin x \cos x )

(Multiple Choice)
4.7/5
(35)

Find all solutions of the following equation in the interval [0,2π).​ 5sec2x5=05 \sec ^ { 2 } x - 5 = 0

(Multiple Choice)
4.7/5
(31)

Which of the following is a solution to the given equation? ​ Cscx - 2 = 0

(Multiple Choice)
4.8/5
(35)

Solve the following equation.​ 4cosx+2=04 \cos x + 2 = 0

(Multiple Choice)
4.8/5
(48)

Use a graphing utility to graph the function.​ f(x)=sinxcosxf ( x ) = \sin x - \cos x

(Multiple Choice)
4.9/5
(38)

Solve the following equation.​ 2tan23x=62 \tan ^ { 2 } 3 x = 6

(Multiple Choice)
4.8/5
(33)

Find all solutions of the following equation in the interval [0,2π).​ 3sinx+cscx=03 \sin x + \csc x = 0

(Multiple Choice)
4.8/5
(44)
Showing 21 - 40 of 54
close modal

Filters

  • Essay(0)
  • Multiple Choice(0)
  • Short Answer(0)
  • True False(0)
  • Matching(0)