Continuity and DifferentiabilityHard

Question

If f(a) = a2, φ (a) = b2 and f′(a) = 3φ′(a) then 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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