1.

If tan (a b) = 1, sec (a + b) = 2/

A. <table><tr><td rowspan="2">142</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1 </center></td></tr><tr><td style="text-align: center;">2</td></tr></table>
B. <table><tr><td rowspan="2">187</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1 </center></td></tr><tr><td style="text-align: center;">2</td></tr></table>
C. <table><tr><td rowspan="2">7</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1 </center></td></tr><tr><td style="text-align: center;">2</td></tr></table>
D. <table><tr><td rowspan="2">37</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1 </center></td></tr><tr><td style="text-align: center;">2</td></tr></table>
Answer» E.


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