which value of theta is not in the domain of validity for csc theta =1/sin theta
Verify each identity give the domain of validity for each identity. It is very used to prove these identities for any value of theta in the domain. So I just specify the domain and leave verification for you to do t with standard values or on calculator. Because verification is an endless process. Proof is not. As proof seems to be simple I will do that which will amount to verification as well
Answer with explanation:
The given expression is:
\(\csc \Theta^{\circ} =\frac{1}{\sin \Theta^{\circ}}\)
Domain of Cosec theta,will be all values in Radian or degree except at the point where,
→sine(theta)≠ 0.
If theta is in either Degrees or in Radian, then
\(\Theta eq k \pi ,\text{Where k, is any Integer}\)
The value of theta which is not in the domain for the validity of
\(\csc \Theta^{\circ} =\frac{1}{\sin \Theta^{\circ}}\)
is, →→Theta(Ф)≠ k π, for any integer ,k.