Verify the identity. cos 2 x tan 2 To verify that an equation is an identity, start with the more complicated side and transform the side of the equation into the other side by a sequence of steps, each of which produces an identity. Begin with left side X + COS X=1 cos ² xtan ² x + cos ² x = + cos² X 2 = (Do not simplify.) + cos² x = 1
Verify the identity. cos 2 x tan 2 To verify that an equation is an identity, start with the more complicated side and transform the side of the equation into the other side by a sequence of steps, each of which produces an identity. Begin with left side X + COS X=1 cos ² xtan ² x + cos ² x = + cos² X 2 = (Do not simplify.) + cos² x = 1
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE:
1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Transcribed Image Text:Verify the identity.
cos ² x tan ² x + cos² x=1
To verify that an equation is an identity, start with the more complicated side and transform the side of the equation into
the other side by a sequence of steps, each of which produces an identity.
Begin with left side
COS
² xtan ² x+ cos²:
2
X
= + cos² x
2
(Do not simplify.)
2
+ cos² x
= 1
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