If 6sin theta=5 and cos theta < 0,find ,without a calculate the value of 1-2cos2 theta
If 6sin theta=5 and cos theta < 0,find ,without a calculate the value of 1-2cos2 theta
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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If 6sin theta=5 and cos theta < 0,find ,without a calculate the value of 1-2cos2 theta
Expert Solution
Step 1
Given:
To Find: Value of
Concept Used:
Step 2
Calculations:
From the given equation:
Using (i),
Substitute this value in the expression whose value is to find
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