Q. 1 J4.0( 3 Votes )

# Find the points o

Answer :

: f(x) = , a > 0 x≠0

f'(x) = and f’’(x) = For maxima and minima,

f'(x) = 0 = 0 x = ±a

now,

f’’(a) = 2/a > 0 as a > 0

x = a is point of minima

f’’(– a) = – 2/a < 0 as a > 0

x = – a is point of maxima

hence

local max value = f(– a) = – 2a

local min value = f(a) = 2a

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