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Ex 2.2

Ex 2.2,1
Deleted for CBSE Board 2023 Exams

Ex 2.2, 2 Important Deleted for CBSE Board 2023 Exams You are here

Ex 2.2, 3 Deleted for CBSE Board 2023 Exams

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Ex 2.2, 19 (MCQ) Important Deleted for CBSE Board 2023 Exams

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Ex 2.2, 21 (MCQ) Deleted for CBSE Board 2023 Exams

Chapter 2 Class 12 Inverse Trigonometric Functions

Serial order wise

Last updated at May 12, 2021 by Teachoo

Ex 2.2, 2 3cosβ1 π₯ = cosβ1 (4π₯^3β 3π₯ ), π₯β [1/2,1] Solving R.H.S cos^(β1) (4π₯^3β 3π₯ ) Putting x = cos π = cos^(β1) (4 γ"cos" γ^ππ β 3cos π) = cos^(β1) (cos 3π) = 3π = 3 cos^(β1) x (cos 3x = 4 cos^3x β 3 cos x) Now, x = cos π β΄ cos^(β1) (x) = π = L.H.S Hence, proved.