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`        If [ cot inverse x ] + [ cos inverse x] = 0 where [ ]   represent the greatest integer function, then the complete set of values of x is`
one year ago

1807 Points
```							since cot inverse x and cos inverse x lie in [0, pi] so their greatest integer function lies in [0,3].now, for [ cot inverse x ] + [ cos inverse x] = 0, both [cot inverse x]=0 and [cos inverse x] = 0 need to hold.for [cot inverse x]=0, cot inverse x lies in [0,1). this means that x lies in (cot1, infinity).similarly [ cos inverse x] = 0 or  cos inverse x lies in [0,1). so x lies in (cos1, 1].hence the solution of x will be the intersection of both these setsSo, x lies in (cot1, 1].
```
one year ago
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### Course Features

• 31 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions