1.

The value of sec60∘[sin(40∘+θ)cos(10∘+θ)−cos(40∘+θ)sin(10∘+θ)] is

Answer» The value of sec60∘[sin(40∘+θ)cos(10∘+θ)−cos(40∘+θ)sin(10∘+θ)] is


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