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Ex 2.2

Ex 2.2,1
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Ex 2.2, 2 Important Deleted for CBSE Board 2023 Exams

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Ex 2.2, 4 Important Deleted for CBSE Board 2023 Exams

Ex 2.2, 5 Important Deleted for CBSE Board 2023 Exams

Ex 2.2, 6 Deleted for CBSE Board 2023 Exams

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Ex 2.2, 8 Important Deleted for CBSE Board 2023 Exams

Ex 2.2, 9 Deleted for CBSE Board 2023 Exams

Ex 2.2, 10 Important Deleted for CBSE Board 2023 Exams

Ex 2.2, 11 Deleted for CBSE Board 2023 Exams

Ex 2.2, 12 Important Deleted for CBSE Board 2023 Exams

Ex 2.2, 13 Important Deleted for CBSE Board 2023 Exams

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Ex 2.2, 15 Important Deleted for CBSE Board 2023 Exams

Ex 2.2, 16 Deleted for CBSE Board 2023 Exams

Ex 2.2, 17 Deleted for CBSE Board 2023 Exams

Ex 2.2, 18 Important Deleted for CBSE Board 2023 Exams

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 March 16, 2023 by Teachoo

Ex 2.2, 14 If sin ("sin−1 " 1/5 " + cos−1 x" ) = 1 , then find the value of x. Given sin ("sin−1 " 1/5 " + cos−1 x" ) = 1 Putting sin 𝜋/2 = 1 sin ("sin−1 " 1/5 " + cos−1 x" ) = sin π/2 Comparing angles "sin−1 " 1/5 + "cos−1 x" = 𝜋/2 "sin−1 " 1/5 = 𝝅/𝟐 – "cos−1 x" We know that sin"−"1 x + cos"−"1 x = 𝜋/2 sin"−"1 x = 𝜋/2 – cos"−"1 x sin-1 1/5 = sin"−"1 x Thus, we can write 1/5 = x x = 𝟏/𝟓 Hence, x = 1/5