4. (a) The following diagram shows two sectors, POQ and ROS. 0Q is x cm and OS is (x + 1) cm. Angle POQ = 0. R x cm If 0 =radians, calculate the area of the shaded region in terms of x.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
icon
Related questions
icon
Concept explainers
Question
4. (a) The following diagram shows two sectors, POQ and ROS. 0Q is x cm and OS
is (x + 1) cm. Angle POQ = 0.
R
х ст
If 0 =radians, calculate the area of the shaded region in terms of x.
(b) Given that cos 60° =, sin 45° =
V3
and sin 120° = without the use of a
calculator, evaluate cos 165°. State your answer in the simplest surd form.
(c) Prove the identity-
cos?x
= 1+ sin x
1-sin x
Transcribed Image Text:4. (a) The following diagram shows two sectors, POQ and ROS. 0Q is x cm and OS is (x + 1) cm. Angle POQ = 0. R х ст If 0 =radians, calculate the area of the shaded region in terms of x. (b) Given that cos 60° =, sin 45° = V3 and sin 120° = without the use of a calculator, evaluate cos 165°. State your answer in the simplest surd form. (c) Prove the identity- cos?x = 1+ sin x 1-sin x
Expert Solution
steps

Step by step

Solved in 4 steps

Blurred answer
Knowledge Booster
Application of Integration
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, advanced-math and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Advanced Engineering Mathematics
Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated
Numerical Methods for Engineers
Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education
Introductory Mathematics for Engineering Applicat…
Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Basic Technical Mathematics
Basic Technical Mathematics
Advanced Math
ISBN:
9780134437705
Author:
Washington
Publisher:
PEARSON
Topology
Topology
Advanced Math
ISBN:
9780134689517
Author:
Munkres, James R.
Publisher:
Pearson,