Mark the Correct alternative in the following:
The value of 
is
Given expression is 
[ using cos 2A = cos2 x – sin2 x ]
[ using 
and 
]
= cosec x
Therefore 
Answer is option C.
1
Mark the Correct alternative in the following:
The value of is
Given expression is
[ using cos 2A = cos2 x – sin2 x ]
[ using and ]
= cosec x
Therefore
Answer is option C.