1.

\[\int_{{}}^{{}}{\frac{dx}{1-\sin x}}=\]                              [MP PET 1991]

A.            \[x+\cos x+c\]
B.            \[1+\sin x+c\]
C.            \[\sec x-\tan x+c\]
D.            \[\sec x+\tan x+c\]
Answer» E.


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