1.

Lim {cosec(x) - cot(x)} x-1 ​

Answer»

t of all please correct your question ;

LIM {COSEC(x) - cot(x)}

x->0

now ;

1/sinx - cosx/sinx

(1-cosx)/sinx

when we put x=0

then we GET 0/0 form .

so as we know for 0/0 form use D-L hospital rule :

d/dx ( 1-cosx) / d/dx(sinx)

= ( 0+sinx ) / cosx

= Sin (0) / COS (0)

= 0/1

= 0


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