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Evaluate the Following: `Cos^-1(Cos4)` - Mathematics

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प्रश्न

Evaluate the following:

`cos^-1(cos4)`

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उत्तर

We know

`cos^-1(costheta)=thetaif 0<=theta<=pi`

We have

`cos^-1(cos4)=cos^-1{cos(2pi-4)}`

= 2π - 4

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अध्याय 4: Inverse Trigonometric Functions - Exercise 4.07 [पृष्ठ ४२]

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आरडी शर्मा Mathematics [English] Class 12
अध्याय 4 Inverse Trigonometric Functions
Exercise 4.07 | Q 2.6 | पृष्ठ ४२

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