15. Which is not equal to - C. sin (-) D. cos (-) A. sin ) B. cos

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter67: Analysis Of Trigonometric Functions
Section: Chapter Questions
Problem 12A
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15. Which is not equal to -1/2?

16. Three times the sine of a certain angle is twice of the square of the cosine of the same angle. Find the value of the angle.

17. Solve the trigonometric equation 2sin2x + sinx − 1 = 0 for 0 ≤ x ≤ 2π.

15. Which is not equal to -?
C. sin (-)
D. cos (-)
A. sin
В. сos
COS
16. Three times the sine of a certain angle is twice of the square of the cosine of the
same angle. Find the value of the angle.
A. 30°
В. 45°
с. 60°
D. 90°
17. Solve the trigonometric equation 2sin²x + sinx – 1 = 0 for 0 <xs 2n.
A.
В.
C.
11m
D.
Transcribed Image Text:15. Which is not equal to -? C. sin (-) D. cos (-) A. sin В. сos COS 16. Three times the sine of a certain angle is twice of the square of the cosine of the same angle. Find the value of the angle. A. 30° В. 45° с. 60° D. 90° 17. Solve the trigonometric equation 2sin²x + sinx – 1 = 0 for 0 <xs 2n. A. В. C. 11m D.
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