TS EAMCET 04 May 2019 Shift 1 Solved Paper

Section: Mathematics
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Question : 63 of 160
 
Marks: +1, -0
If the function f : R → R defines by f (x) = {
a(
1cos2x
x2
)
forx<0
bforx=0
x
4+x2
forx>0

is continuous at x = 0. then a + b =
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