The number of real solutions of Tan-1-x-x-1-Sin-1-x-2-x-1-2 is-01infinite2

The correct option is D 2Cos^ 11/√(x^2+x+1)+Sin^ 1√(x^2+x+1)=π/2⇒ x^2+x+1=1 ...

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Properties Derived from Trigonometric Identities

The number of...

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The number of real solutions of $T a n^{- 1} \sqrt{x (x + 1)} + S i n^{- 1} \sqrt{x^{2} + x + 1} = \frac{π}{2}$ is___

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t a n^{- 1} (\sqrt{x (x + 1)} + s i n^{- 1} \sqrt{(x^{2} + x + 1)} = \frac{π}{2}

{tan}^{- 1} \sqrt{x (x + 1)} + {sin}^{- 1} \sqrt{x^{2} + x + 1} = \frac{π}{2}

The number of real solutions of the equation $t a n^{- 1} \sqrt{x (x + 1)} + s i n^{- 1} \sqrt{x^{2} + x + 1} = \frac{π}{2}$ is

{tan}^{- 1} \sqrt{x (x + 1)} + {sin}^{- 1} \sqrt{x^{2} + x + 1} = \frac{π}{2}

{tan}^{- 1} \sqrt{x (x + 1)} + {sin}^{- 1} \sqrt{x^{2} + x + 1} = \frac{π}{2}

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