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Question

If M denotes the maximum value of (1+sec1x)(1+cos1x) & m denotes the maximum value of (1+cosec1x)(1+sin1x), then [Mm] is (where [.] denotes greatest integer function)

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Solution

(1+sec1x)(1+cos1x) its
Maximum value occur at x=1
M=(1+π)2
(1+cosec1x)(1+sin1x)
its maximum value occur at x=1
m=(1+π2)2
(Mm)=4.(1+π2+π)2=2.6
[Mm]=2

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