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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Alka gupta
similarly we can solve remaining ....
is this applicable only when we have x as the question or we can sub when question contain sinx ,coax etc
only for x
ok
if the question is like ✓a^2-(e^x)^2 can we sub that in x
no....in this case method will be different
ok