If in a triangle the side a and the angl...

If in a triangle the side a and the angle A remain constant, while other elements are changed slightly then

`deltabsinB+deltacsinC=0`

`deltabcosB+deltac cosC=0`

`deltabsecB+deltacsecC=0`

`deltab cosecB+deltac cosec C=0

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AAKASH SERIES-ERRORS AND APPROXIMATIONS-EXERCISE-I

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