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The number of distinct real roots of `|{:(cosec x, secx, secx), (secx, cosecx, secx), (secx, secx, cosecx):}|=0` lies in the interval `pi/4lt=xlt=pi/4` is (a) 1 (b) 2 (c) 3 (d) 0

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`Delta=[[{cosec} x , sec x , sec x ],[ sec x , {cosec} x ,sec x ], [sec x , sec x , {cosec} x]]`
`C_{1} -> C_{1}-C_{3}`
`{C}_{2} -> {C}_{2}-{C}_{3}`
`D= [[{cose} x-sec x , 0 , sec x], [ 0 , {cosec} x-sec x , sec x ], [sec x-{cosec} x , sec x-{cosec} x , {cosec} x]]`
...
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