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tan 225° - cos? 215° (3) tan(-35°) sin(-35°)· cos 35°

tan 225° - cos? 215° (3) tan(-35°) sin(-35°)· cos 35°

Trigonometry (11th Edition)
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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Please help me with question 3 it is not graded
J'CUS(90° -a.)- cos(180° – a) . sin(180°+ A)+2 cos(90° + A) cos(A-180° (5) 2 cos (360°+ A)– cos(-A) Simplify the following without the use of a calcul: sin 330° tan 210° sin 190° sin (1) (2) cos 100° sin 120° sin tan 225°- cos 215° sin (4) tan(-35°)- sin(-35°)· cos 35° (3) Prove the following identities:
Transcribed Image Text:J'CUS(90° -a.)- cos(180° – a) . sin(180°+ A)+2 cos(90° + A) cos(A-180° (5) 2 cos (360°+ A)– cos(-A) Simplify the following without the use of a calcul: sin 330° tan 210° sin 190° sin (1) (2) cos 100° sin 120° sin tan 225°- cos 215° sin (4) tan(-35°)- sin(-35°)· cos 35° (3) Prove the following identities:
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