Let f: be defined as If f(x) is continous on R, then a +b equals:
Option: 1 -1
Option: 2 -3
Option: 3 1
Option: 4 3
Either a– 1 + b = 2 or a – 1 + b = –2
a + b = 3 ...(2) or a + b = –1 ...(3)
from (1) and (2)
a + b = 3 = – 1(reject)
from (1) and (3)
a + b = –1
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