Question

( lim _{cos pi / 2}(sec theta-tan theta) times frac{(sec theta+tan theta)}{(sec theta+tan theta)} )
( =frac{L t}{2 pi pi / 2} frac{sec ^{2} theta-tan ^{2} theta}{sec theta+2 cos theta} )
( =frac{2 t}{infty, pi / 2} frac{1}{sec theta+tan theta} cdot therefore sec pi / 2-3 alpha )
( Rightarrow )
Ge the

# lim (sec 0 - tan 0) = (b) 1 (a) 0 (c)-1 (d) 2

Solution