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## Homework Statement

f(x) = [1 - tan(x)]/[1 - √2 sin(x)] for x ≠ π/4

= k/2 for x = π/4

Find the value of k if the function is continuous at x = π/4

## The Attempt at a Solution

This means that lim x → π/4 f(x) = k/2

I put x = (π/4 + h) and then evaluated the limit as h tended to zero. Doesn't work. Get sin (2h) in the denominator. Can I get a hint?