(a) Use Addition formula to find the exact value of Cos (a + B), , (a in quadrant III) and csc B = ÷, (ß in quadrant II). 3 if tan a= %3D 3 (b) Find the quadrant in which the angle (a + B) lies if csc (a + B)<0. Hint: Use your answer for part (a).
(a) Use Addition formula to find the exact value of Cos (a + B), , (a in quadrant III) and csc B = ÷, (ß in quadrant II). 3 if tan a= %3D 3 (b) Find the quadrant in which the angle (a + B) lies if csc (a + B)<0. Hint: Use your answer for part (a).
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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![(a) Use Addition formula to find the exact value of Cos (a + B),
5
(a in quadrant III) and cscB =
(B in quadrant II).
if tan a
%3D
3'
(b) Find the quadrant in which the angle (a + B) lies if csc (a + B)<0.
Hint: Use your answer for part (a).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc76a2e1f-0b82-4bb0-969c-5536cafadbe5%2F2251db19-bb39-44a1-9cde-80c5c39a93e1%2Fk5l2id_processed.jpeg&w=3840&q=75)
Transcribed Image Text:(a) Use Addition formula to find the exact value of Cos (a + B),
5
(a in quadrant III) and cscB =
(B in quadrant II).
if tan a
%3D
3'
(b) Find the quadrant in which the angle (a + B) lies if csc (a + B)<0.
Hint: Use your answer for part (a).
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