is there any trick in memorising the formula of sin , cos , cot , tan , sec and cosec 

Yes their is a easy way to remember the formula, that is
"SOME PEOPLE HAVE CURLY BROWN HAIR TURNED PARMANENTLY BLACK"

sin= Perpendicular/Hypotenuse
Cos= Base/Hypotenuse
Tan= Perpendicular/ Base

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Just memorise this sentence:-
*Some People Have Curly Black Hair To Present beauty*
Some People Have (sin = p/h) - (OPPOSITE sec = h/p)
Curly Black Hair (cos = b/h) - (OPPOSITE cosec = h/b)
To Present beauty (tan = p/b) - (OPPOSITE cot = b/p)


 
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pandit bihari prashad hari hari bole 
sin= pandit/hari : perpendicular / hypotenuse 
cos = bihari?hari : base/ hyptenuse
​tan= prashad/bole : perpendicular/ base 
cosec opp of sin sec opp of cos cot opp of tan 

 

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Pandit Badri Parsad 
Har     Har    Bole
Sona Chandi Tole

Sona Means sin=p/h
Chandi means cos =b/h
tole maens Tan =p/b
Its  easier trick just remaind this line P B P H H B S C T
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thanks all of u !!!!!!
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