Mathematics
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OpenStudy (anonymous):
How do you find the arctan 4/3 ? (Without a calculator)
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OpenStudy (aravindg):
first draw the diagram
OpenStudy (anonymous):
|dw:1358493375636:dw|
OpenStudy (aravindg):
lols using a scale and pencil
OpenStudy (aravindg):
then measure using a protractor
OpenStudy (aravindg):
after you do that tell me what you get
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OpenStudy (aravindg):
i will provide more inputs
OpenStudy (anonymous):
|dw:1358493464138:dw|
OpenStudy (aravindg):
you see the triangle we are dealing with is the elementary pythagorean rt angled triangle of sides 3,4,5
OpenStudy (aravindg):
i told you to draw a right angled triangle with hypotenuse 5 sides 3,4
OpenStudy (aravindg):
not here in a fresh piece of paper
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OpenStudy (anonymous):
|dw:1358493607016:dw|
OpenStudy (aravindg):
and measure the angle such that you get tan theta=4/3
OpenStudy (aravindg):
the angles are not 30 and 60 .pleae measure using protractor
OpenStudy (aravindg):
*please
OpenStudy (anonymous):
60 degrees
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OpenStudy (aravindg):
no
OpenStudy (anonymous):
or pi/3
OpenStudy (aravindg):
draw accurately
OpenStudy (anonymous):
|dw:1358493754920:dw|
OpenStudy (aravindg):
o.O ?
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OpenStudy (aravindg):
i told u to stop drawing here!!
OpenStudy (anonymous):
theta is 60 degrees
OpenStudy (aravindg):
draw in a paper
right angled triangle hypotenuse 5 sides 3,4
OpenStudy (anonymous):
its a right triangle! with angles of 30, 60, 90!
OpenStudy (aravindg):
no
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OpenStudy (aravindg):
please dont be blind to my polite requests
OpenStudy (anonymous):
i drew it on a piece of paper
OpenStudy (aravindg):
draw it and when you get the answer mention me @AravindG
OpenStudy (aravindg):
DRAW IT ACCURATELY !!!
OpenStudy (aravindg):
you will get angle less than 60 degree
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OpenStudy (aravindg):
take 4 -6 mins to draw that
OpenStudy (aravindg):
will wait
OpenStudy (anonymous):
my original question was supposed to be sin(arctan(4/3)) , i forgot to mention
OpenStudy (aravindg):
-_-
OpenStudy (anonymous):
sorry
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OpenStudy (aravindg):
then its too simple
OpenStudy (aravindg):
convert tan inverse to sin inverse by drawing triangle
OpenStudy (aravindg):
then sin sin inverse will give x
OpenStudy (aravindg):
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