1.

If T is the actual number of teeth on a helical gear and φ is the helix angle for the teeth, the formative number of teeth is written as

A. T sec<sup>3</sup> φ
B. T sec<sup>2</sup> φ
C. T/sec<sup>3</sup>φ
D. T cosec φ
Answer» B. T sec<sup>2</sup> ‚âà√¨‚àö√∫


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