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Evaluate the limit using L'Hôpital's rule.
limx→π2 7cos(3x)sec(-5x)
limx→π2 7cos(3x)sec(-5x)
Get help:
Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity
-215