The minimum value of x which satisfies the inequality s i n - 1 x ≥ c o s - 1 x is λ , then the value of 2 λ is (use 2 = 1.41 )

Question

The minimum value of x which satisfies the inequality s i n - 1 x ≥ c o s - 1 x is λ , then the value of 2 λ is (use 2 = 1.41 ),

MARKS App · Accepted Answer

Using the graphs of s i n - 1 x & c o s - 1 x , we can see that s i n - 1 x ≥ c o s - 1 x for x ∈ 1 2 , 1 So, the minimum value of x is λ = 1 2 Hence, 2 λ = 2

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