CBSE Class 12-science Answered
Asked by Tushar | 02 May, 2014, 05:37: PM
Expert Answer
a) x2-3x+2/x2+x-6
=(x-1)(x-2)/(x-2)(x+3)
=x-1/x+3
Min= -3, Max = 1
range = ( -3, 1)
b)
sinx - cosx= root(2)(sin(x-Pi/4)
we have, -1?sin(x-Pi/4)?1
Therefore,
-root(2)?root(2)sin(x-Pi/4)?root(2)
Answered by Avinash Soni | 04 May, 2014, 08:32: AM
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