Two tools P and Q have signatures 5 -50-60-6 - 8 -30 -0 and 5 -5 -7 -7 -8 -15 -0 (both ASA) respectively. They are used to turn components under the same machining conditions. If hp and hQ denote the peak-to-valley heights of surfaces produced by the tools P and Q, the ratio h

Two tools P and Q have signatures 5 -50-60-6 - 8 -30 -0 and 5 -5 -7 -7

1.	Two tools P and Q have signatures 5 -50-60-6 - 8 -30 -0 and 5 -5 -7 -7 -8 -15 -0 (both ASA) respectively. They are used to turn components under the same machining conditions. If hp and hQ denote the peak-to-valley heights of surfaces produced by the tools P and Q, the ratio h
A.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> tan 8 + cot15 </center></td></tr><tr><td style="text-align: center;">tan8 + cot30 </td></tr></table>
B.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> tan15 + cot8 </center></td></tr><tr><td style="text-align: center;">tan30 + cot8 </td></tr></table>
C.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>tan15 + cot7 </center></td></tr><tr><td style="text-align: center;">tan30 + cot7 </td></tr></table>
D.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>tan7 + cot15 </center></td></tr><tr><td style="text-align: center;">tan7 + cot30 </td></tr></table>
Answer» C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>tan15 + cot7 </center></td></tr><tr><td style="text-align: center;">tan30 + cot7 </td></tr></table>

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Two tools P and Q have signatures 5 -50-60-6 - 8 -30 -0 and 5 -5 -7 -7 -8 -15 -0 (both ASA) respectively. They are used to turn components under the same machining conditions. If hp and hQ denote the peak-to-valley heights of surfaces produced by the tools P and Q, the ratio h

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