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Mathematics 17 Online
OpenStudy (anonymous):

How do you find the arctan 4/3 ? (Without a calculator)

OpenStudy (aravindg):

first draw the diagram

OpenStudy (anonymous):

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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

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

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

OpenStudy (aravindg):

no

OpenStudy (anonymous):

or pi/3

OpenStudy (aravindg):

draw accurately

OpenStudy (anonymous):

|dw:1358493754920:dw|

OpenStudy (aravindg):

o.O ?

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

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

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

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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