Find sinx in form of secx....
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Answered by
2
Find sinx in form of secx,
Good question,
Here is your perfect answer!
sin²x + cos²x = 1
=) sin²x = 1 - cos²x
=) sin²x = 1- (1/sec²x)
=) sin²x = (sec²x-1) /sec²x
=) sinx = under root [(sec²x-1)]/secx
Or under root[(secx+1)(secx-1)]/ secx.
khalidrja78:
hiii
Answered by
6
Find sinx in form of secx....
sec x= 1/cosx
cos^2x+sin^2x=1
hence
cos^2x=1-sin^2x
hence
sec x= 1/1-sin^2x
1-sin^2x=secx
-sin^2x=secx-1
sinx=_/secx-1
Hence solved
THANKS
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