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Last updated at Aug. 11, 2021 by Teachoo

Transcript

Ex 8.2, 2 Choose the correct option and justify your choice : (ii) "1 tan2 45 " /"1 + tan2 45 " = tan 90 (B) 1 (C) sin 45 (D) 0 We know that, tan 45 = 1 So, (1 tan ^2 45 )/(1 + tan ^2 45 ) = (1 (1)^2)/(1 + (1)^2 ) = (1 1)/(1 + 1) = 0/2 = 0 Hence, Option (D) is correct

Ex 8.2

Ex 8.2, 1 (i)

Ex 8.2, 1 (ii)

Ex 8.2, 1 (iii)

Ex 8.2, 1 (iv) Important

Ex 8.2, 1 (v) Important

Ex 8.2, 2 (i) (MCQ)

Ex 8.2, 2 (ii) (MCQ) You are here

Ex 8.2, 2 (iii) (MCQ) Important

Ex 8.2, 2 (iv) (MCQ)

Ex 8.2, 3 Important

Ex 8.2, 4 (i) Important

Ex 8.2, 4 (ii) Important

Ex 8.2, 4 (iii)

Ex 8.2, 4 (iv)

Ex 8.2, 4 (v) Important

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.