For a bevel gear having the pitch angle ‚âà√≠‚Äö√†√®, the ratio of formative number of teeth (TE) to actual number of teeth (T) is$

1/tan ‚âà√≠‚Äö√†√®

1/sin ‚âà√≠‚Äö√†√®

1/cos ‚âà√≠‚Äö√†√®

sin ‚âà√≠‚Äö√†√® cos ‚âà√≠‚Äö√†√®

For a bevel gear having the pitch angle ‚âà√≠‚Äö√†√�

1.	For a bevel gear having the pitch angle ‚âà√≠‚Äö√†√®, the ratio of formative number of teeth (T_E) to actual number of teeth (T) is$
A.	1/sin ‚âà√≠‚Äö√†√®
B.	1/cos ‚âà√≠‚Äö√†√®
C.	1/tan ‚âà√≠‚Äö√†√®
D.	sin ‚âà√≠‚Äö√†√® cos ‚âà√≠‚Äö√†√®
Answer» C. 1/tan ‚âà√≠‚Äö√†√®