hint:
cos x = sin (pi/2-x)
Evaluate the following limit:
lim x->(pi/2) [((pi/2)-(x))/cosx]
May I please get a hint on how to start this question?
1 answer
lim x->(pi/2) [((pi/2)-(x))/cosx]
May I please get a hint on how to start this question?
1 answer