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Ex 8.2, 2 (ii) (MCQ) - Chapter 8 Class 10 Introduction to Trignometry
Last updated at Dec. 16, 2024 by Teachoo
Ex 8.2
Ex 8.2, 1 (i)
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Transcript
Ex 8.2, 2 Choose the correct option and justify your choice : (ii) (๐ โใ ๐๐๐ใ^๐โกใ๐๐ยฐใ)/(๐ +ใ ๐๐๐ใ^๐โกใ๐๐ยฐใ ) = tan 90ยฐ (B) 1 (C) sin 45ยฐ (D) 0 We know that, tan 45ยฐ = 1 So, (๐ โใ ๐๐๐ใ^๐โกใ๐๐ยฐใ)/(๐ +ใ ๐๐๐ใ^๐โกใ๐๐ยฐใ ) = (1 โ (1)^2)/(1 + (1)^2 ) = (1 โ 1)/(1 + 1) = 0/2 = 0 So, the correct answer is (d) = 0 So, the correct answer is (d)
