(-pi/2)^2= pi/4
secant of pi/4= 1/cos(pi/4)=(1)/(sqroot 2/2)=
2/sqroot 2=sqroot2
since you are looking for -secant answer is
-sqroot 2
Lu J.
asked • 02/05/21lim x--->(-pi/2)^- secx=?
Not sure on this....................
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