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If $A + B = \frac{π}{3}$ where $A, B \in R^{+}$ . Then the minimum value of $\sec A + \sec B$ is

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Correct option is B

For y=secx,x∈0,π2Tangent drawn to it at any point lies completely below the graph of y=secx∴secA+secB2≥secA+B2⇒secA+secB≥2.secπ6=43

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If A+B=π3where A,B∈R+. Then the minimum value of secA+secB is

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If $A + B = \frac{π}{3}$ where $A, B \in R^{+}$ . Then the minimum value of $\sec A + \sec B$ is