Asked by Tushar | 2nd 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 | 4th May, 2014, 08:32: AM

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