Answer with Step-by-step explanation:
We are given that 
We have to prove that why the limit x approaches 0(csc(x)-cot(x)) involves an indeterminate form and prove that the limit equals to 0.

Because
and


We know that cos 0=1 and sin 0=0
Substitute the values then we get

We know that
is indeterminate form
Hence, the limit x approaches 0(csc(x)-cot(x)) involves an indeterminate form.
L'hospital rule:Apply this rule and differentiate numerator and denominator separately when after applying
we get indeterminate form
Now,using L' hospital rule

because 
Now, we get



Hence,
Answer:
google it , it'll help you
The answer 7980 divided by .19 =/is 42.
2/4= 10/20
1 4/10=14/10 14/10=28/20
10/20×28/20=7/10
I hope this helped!!!:)