Is 12(4x + 2) equivalent
2 answers:
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Step-by-step answer:
Referring to the attached diagram, the resultant of two forces each with magnitude F and inclined to each other at 2a equals
Ra = 2Fcos(a) ..............................(1)
Similarly, the resultant of two forces each with magnitude F and inclined to each other at 2b equals
Rb = 2Fcos(b)..............................(2)
We are given that
Ra = 2Rb ....................................(3)
Substitute (1) & (2) in (3) gives
2Fcos(a) = 2(2Fcos(b))
Expand
2Fcos(a) = 4Fcos(b)
Simplify
cos(a) = 2 cos(b) QED
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Answer:
For table :
X------Y
0------6
1------2
Figure show equation of line: y=6-4x
Step-by-step explanation:
Given equation is y=6-4x
To plot the equation of line, we need at least two points.
Take x=0
The respective value of y on line is
y=6-4x
y=6-4(0)
y=6
The required point is A(0,6)
Take x=1
The respective value of y on line is
y=6-4x
y=6-4(1)
y=2
The required point is B(1,2)
For table :
X------Y
0------6
1------2
Figure show equation of line: y=6-4x
