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Write the Principal Value of Sin − 1 { Cos ( Sin − 1 1 2 ) } - Mathematics

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प्रश्न

Write the principal value of \[\sin^{- 1} \left\{ \cos\left( \sin^{- 1} \frac{1}{2} \right) \right\}\]

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उत्तर

\[\sin^{- 1} \left\{ \cos\left( \sin^{- 1} \frac{1}{2} \right) \right\} = \sin^{- 1} \left\{ \cos\left[ \sin^{- 1} \left( \sin\frac{\pi}{3} \right) \right] \right\}\]
\[ = \sin^{- 1} \left[ \cos\left( \frac{\pi}{3} \right) \right]\]
\[ = \sin^{- 1} \left[ \frac{1}{2} \right]\]
\[ = \sin^{- 1} \left[ \sin\left( \frac{\pi}{3} \right) \right]\]
\[ = \frac{\pi}{3}\]

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अध्याय 4: Inverse Trigonometric Functions - Exercise 4.15 [पृष्ठ ११९]

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आरडी शर्मा Mathematics [English] Class 12
अध्याय 4 Inverse Trigonometric Functions
Exercise 4.15 | Q 51 | पृष्ठ ११९

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