If a = f (− 1), B = f (log0.514), C = f (lg0.5), then the relationship among a, B and C is______ (from small to large)
∵ even function f (x) ∵ f (LG12) = f (LG2), f (- 1) = f (1), log0.514 = 2, ∵ LG2 < 1 < 2, f (x) monotonically decreases in [0, 2] ∵ f (LG2) > F (1) > F (2), that is, C > a > b, so the answer is B < a < C
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