…radical (alpha sec theta)^2 -a^2

â€¦radical (alpha sec theta)^2 -a^2

=a secQ-a^2

or if it is

radical ((alpha sec theta)^2 -a^2)

=sqrt(a^2 sec^2Q-a^2)

= sqrt(a^*(sec^2Q-1)) = |a*tanQ|

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