how to find the max and min value of any trigonometry function...??plz explain the procedure in general...!!!And also solve :the minimum value of sec²x + cosec²x is ....???

Dear Abhijat,

In order to find Min and Max value of Trignometric functionwe use some basic facts suchas:

value of sinx and cos x lies b/w 1 &-1.

Value of Square of any function is always greater then zero

We can also use derivatives  to find maxima and minima.

Best Of luck

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