Chat with AIExam 6: Trigonometric Identities and Conditional Equations
Exam 1: Equations, Inequalities, and Modeling531 Questions
Exam 2: Functions and Graphs365 Questions
Exam 3: Polynomial and Rational Functions396 Questions
Exam 4: Exponential and Logarithmic Functions203 Questions
Exam 5: The Trigonometric Functions398 Questions
Exam 6: Trigonometric Identities and Conditional Equations674 Questions
Exam 7: Applications of Trigonometry332 Questions
Exam 8: Systems of Equations and Inequalities293 Questions
Exam 9: Matrices and Determinants218 Questions
Exam 10: The Conic Sections218 Questions
Exam 11: Sequences, Series, and Probability338 Questions
Exam 12: Basic Algebra Review226 Questions
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Write the word or phrase that best completes each statement or answers the question.
Provide an appropriate response.
-What is wrong with this problem? "Find cos s if sec 
and s is in quadrant III."
and s is in quadrant III." (Essay)
4.8/5 
(29)
(29) Use a sum or difference identity to find the exact value.
-sin(-15°)
(Multiple Choice)
4.7/5 (34)
(34) Find all real numbers in the interval 
that satisfy the equation.
-2 sin x cos x + cos x = 0
that satisfy the equation.
-2 sin x cos x + cos x = 0 (Multiple Choice)
4.8/5 (35)
(35) Find all real numbers that satisfy the equation.
-sin x = - 22
(Multiple Choice)
4.9/5 (44)
(44) Use the appropriate sum or difference identity to write the given expression as a function of x alone.
-sin (270° - x)
(Multiple Choice)
4.9/5 (30)
(30) 
Decide whether the expression is or is not an identity.
-c 
(Multiple Choice)
4.9/5 (47)
(47) For the following equation, graph 
on the same screen on your calculator. From the graphs, make
a conjecture as to whether the equation is an identity. If so, prove your conjecture.
-( 
on the same screen on your calculator. From the graphs, make
a conjecture as to whether the equation is an identity. If so, prove your conjecture.
-( (Short Answer)
4.7/5 (39)
(39) 
Express the given trigonometric function in terms of the indicated function.
-sec 
in terms of cot 
in terms of cot (Multiple Choice)
4.9/5 (30)
(30) 
Use a sum-to-product identity to rewrite the expression.
-
(Multiple Choice)
4.8/5 (52)
(52) Solve the problem.
-Consider the formula T = 591 - 76 cos 
is measured in degrees. To the nearest hundredth of a degree, what is the smallest positive value of 
for which the value of T will be 607?
is measured in degrees. To the nearest hundredth of a degree, what is the smallest positive value of for which the value of T will be 607? (Multiple Choice)
4.8/5 (28)
(28) 
Use a product-to-sum identity to rewrite the expression.
-cos 20° sin 45°
(Multiple Choice)
4.9/5 (27)
(27) Find all values of x in the interval [0°, 360°) that satisfy the equation. Round approximate answers to the nearest tenth of a
degree.
-
+ 8 sin x - 4 = 0
+ 8 sin x - 4 = 0 (Multiple Choice)
4.8/5 (35)
(35) Find the exact value using a double-angle identity.
-sin(300°)
(Multiple Choice)
4.9/5 (40)
(40) Use a half-angle identity to find an exact value for the following, given the information about x.
-Find tan 
, given that sin x = - 
and 270° < x < 360°.
, given that sin x = - and 270° < x < 360°. (Multiple Choice)
4.8/5 (27)
(27) Find all values of x in the interval [0°, 360°) that satisfy the equation. Round approximate answers to the nearest tenth of a
degree.
-sin 2x = csc 2x
(Multiple Choice)
4.8/5 (41)
(41) Use an identity to find the exact value of the expression.
-
(Multiple Choice)
4.7/5 (43)
(43) 
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