1.

If sec = x +1(0 < < 90 ), then sec + tan is equal to 4x

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


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