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sin B-sin C B+C cot- tan 2 В-с (c)Proove the following identity %3D sin B+sin C

sin B-sin C B+C cot- tan 2 В-с (c)Proove the following identity %3D sin B+sin C

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 answer part c of the question

QUESTION TWO (a)Show that,if x is small enough for its cube and higher powers to be neglected, =1-x+. by putting x = show that 1+x 83 7 = 2 128 (b)If x is so small that its fourth and higher powers may be neglected show that V(1 + x) + V(1 – x) = a – bx? and find the numbers a and b.Hence by putting x show that the sum of the fourth roots of 17 16 and of 15 is 3 - 9985 approximately. cot tan sin B-sin C B+C В-с (c)Proove the following identity sin B+sin C 2 2
Transcribed Image Text:QUESTION TWO (a)Show that,if x is small enough for its cube and higher powers to be neglected, =1-x+. by putting x = show that 1+x 83 7 = 2 128 (b)If x is so small that its fourth and higher powers may be neglected show that V(1 + x) + V(1 – x) = a – bx? and find the numbers a and b.Hence by putting x show that the sum of the fourth roots of 17 16 and of 15 is 3 - 9985 approximately. cot tan sin B-sin C B+C В-с (c)Proove the following identity sin B+sin C 2 2
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