Ex 8.2, 2 (ii) (MCQ) - Chapter 8 Class 10 Introduction to Trignometry

Last updated at August 17, 2026 by

ย 

Ex 8.2, 2 (ii) (MCQ) - 1 - tan^2 45 / 1 + tan^2 45 = [Video Solution] - Ex 8.2

part 2 - Ex 8.2, 2 (ii) (MCQ) - Ex 8.2 - Serial order wise - Chapter 8 Class 10 Introduction to Trignometry

ย 

Remove Ads Take short quiz All Quiz and Worksheets
Teachoo ยท Class 10 Explore Class 10

Transcript

Ex 8.2, 2 Choose the correct option and justify your choice : (ii) (๐Ÿ โˆ’ใ€– ๐’•๐’‚๐’ใ€—^๐Ÿโกใ€–๐Ÿ’๐Ÿ“ยฐใ€—)/(๐Ÿ +ใ€– ๐’•๐’‚๐’ใ€—^๐Ÿโกใ€–๐Ÿ’๐Ÿ“ยฐใ€— ) = tan 90ยฐ (B) 1 (C) sin 45ยฐ (D) 0 We know that, tan 45ยฐ = 1 So, (๐Ÿ โˆ’ใ€– ๐’•๐’‚๐’ใ€—^๐Ÿโกใ€–๐Ÿ’๐Ÿ“ยฐใ€—)/(๐Ÿ +ใ€– ๐’•๐’‚๐’ใ€—^๐Ÿโกใ€–๐Ÿ’๐Ÿ“ยฐใ€— ) = (1 โˆ’ (1)^2)/(1 + (1)^2 ) = (1 โˆ’ 1)/(1 + 1) = 0/2 = 0 So, the correct answer is (d) = 0 So, the correct answer is (d)

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh is an IIT Kanpur graduate and has been teaching for 16+ years. At Teachoo, he breaks down Maths, Science and Computer Science into simple steps so students understand concepts deeply and score with confidence.

Many students prefer Teachoo Black for a smooth, ad-free learning experience.