A) \[\frac{1}{\cos \,x}\]
B) \[\frac{1}{\sin \,x}\]
C) \[\frac{1}{\tan \,x}\]
D) \[\cos \,x\]
Correct Answer: A
Solution :
[a] \[\tan \,\theta =\frac{V}{H}\], \[\tan \,{{\theta }^{'}}=\frac{V}{H\,\cos \,x}\]; \[\frac{\tan {{\theta }^{'}}}{\tan \,\theta }=\frac{1}{\cos \,x}\]You need to login to perform this action.
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