NDA2021MathematicsTrigonometric Ratios & IdentitiesActual
Let the equation x cosec x=p have a solution, where p is a positive real number. What should be the smallest value of p ?
Options
- A1 2
- B1
- C2
- DMinimum does not exist
Correct answer
C. 2
Step-by-step solution
aligned & 1 x x =p 2 x x= 2 P & 2 x= 2 P & since -1 1 and P 0 & 2 P 1 P 2 aligned So, smallest value of P is 2 .