1.

Set a,bϵ[−π,π] be such that cos (a - b) = 1 and cos (a + b) =1e. The number of pairs of a, b satisfying the above system of equation is

Answer»

Set a,bϵ[π,π] be such that cos (a - b) = 1 and cos (a + b) =1e. The number of pairs of a, b satisfying the above system of equation is




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