Answer:
It is an identity, the proof is in the explanation
Step-by-step explanation:
csc(A)-cot(A)=tan(A/2)
I'm going to start with right hand side
tan(A/2)=(1-cos(a))/(sin(a)) half angle identity
tan(A/2)=1/sin(a)-cos(a)/sin(a) separate fraction
tan(A/2)=csc(a)-cot(a) reciprocal and quotient identities
Answer:
Hence the correct option is 3rd option. 40
Step-by-step explanation:
If two figures are similar, then the ratio of the corresponding sides is proportional.

Answer:
Step-by-step explanation:
I uploaded a picture hope it helps
Answer:
s> 144 2/3
Step-by-step explanation:
I took the test in k12 and i got it right so yea !
If you would like to know whether or not what she wrote is accurate, it is.
Hope that helps!