True or false: the following is an identity. Assume that is in radians. JUSTIFY your answers completely. A correct justification is necessary to receive any credit. Recall: an identity is an equation that is ALWAYS true. If the statement is false, you can show this with one example where the equation does not hold. If the statement is true, you need to show that it is true for all values of 0. You may sometimes find it helpful to justify using graphs. (a). sin (0) = cos (0) (b). cos(-0) = cos(0)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 36E
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help me with a and b please
True or false: the following is an identity. Assume that is in radians.
JUSTIFY your answers completely. A correct justification is necessary to receive any credit.
Recall: an identity is an equation that is ALWAYS true. If the statement is false, you can show
this with one example where the equation does not hold. If the statement is true, you need to
show that it is true for all values of 0. You may sometimes find it helpful to justify using graphs.
(a).
sin(0) = cos(0)
(b).
cos(-0) = cos(0)
Transcribed Image Text:True or false: the following is an identity. Assume that is in radians. JUSTIFY your answers completely. A correct justification is necessary to receive any credit. Recall: an identity is an equation that is ALWAYS true. If the statement is false, you can show this with one example where the equation does not hold. If the statement is true, you need to show that it is true for all values of 0. You may sometimes find it helpful to justify using graphs. (a). sin(0) = cos(0) (b). cos(-0) = cos(0)
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