Continuity and DifferentiabilityHard
Question
If f(a) = a2, φ (a) = b2 and f′(a) = 3φ′(a) then 
is -
is -Options
A.b2/a2
B.b/a
C.2b/a
D.None of these
Solution
f(a) = a2 φ(a) = b2
f′(a) = 3φ′(a)
term
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f′(a) = 3φ′(a)
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