मराठी

Evaluate the Following: `Cos^-1{Cos (5pi)/4}`

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प्रश्न

Evaluate the following:

`cos^-1{cos  (5pi)/4}`

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उत्तर

We know

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

We have

`cos^-1{cos  (5pi)/4}=cos^-1{cos(2pi-(3pi)/4)}`

`=cos^-1{cos((3pi)/4)}`

`=(3pi)/4`

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पाठ 3: Inverse Trigonometric Functions - Exercise 4.07 [पृष्ठ ४२]

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आर.डी. शर्मा Mathematics Volume 1 and 2 [English] Class 12
पाठ 3 Inverse Trigonometric Functions
Exercise 4.07 | Q 2.2 | पृष्ठ ४२
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