if A is the angle opposite to side a, and b and c are two other side. Which of thefollowingis the cosine law?a. a=b²-c²+ 2ab cos Ab. a²=b²+ c² + 2ab cos Ac.a²=b²c²-2ab cos Ad. a² = b² + c² - 2ab cos A

Answered: Image /qna-images/answer/7dda8336-2506-4ba1-977a-9e7cd6ce1ea5.jpg

if A is the angle opposite to side a, and b and c are two other side. Which of the following is the cosine law? a. a=b²-d²+ 2ab cos A b. a²=b²+ c² + 2ah c. a² = b²c²-2ab cos A n? - h² + ² - 2ab cos A

if A is the angle opposite to side a, and b and c are two other side. Which of the following is the cosine law? a. a=b²-d²+ 2ab cos A b. a²=b²+ c² + 2ah c. a² = b²c²-2ab cos A n? - h² + ² - 2ab cos A

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Dimensional homogeneity

The term dimensional homogeneity means that in an equation, the dimensions of each term on both sides are equal, which means the dimensions of the left-hand side (LHS) of an equation are similar to the dimensions of the right-hand side (RHS). For a dimensionally homogeneous equation, the powers of fundamental dimensions will be identical on both sides of the equation.

Question

if A is the angle opposite to side a, and b and c are two other side. Which of the
following
is the cosine law?
a. a=b²-c²+ 2ab cos A
b. a²=b²+ c² + 2ab cos A
c.
a²=b²c²-2ab cos A
d. a² = b² + c² - 2ab cos A

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