Given that sin α = √3/2 and cos β = 0, then the value of β − α is
(a) 0 (b) 90° (c) 60° (d) 30°
Last updated at Nov. 1, 2019 by Teachoo
Transcript
Question 7 Given that sin 𝛼 = √3/2 and cos 𝛽 = 0, then the value of 𝛽 − 𝛼 is (a) 0 (b) 90° (c) 60° (d) 30° Given sin 𝛼 = √3/2 So, 𝛼 = 60° cos 𝛽 = 0 So, 𝛽 = 90° Now, 𝛽 − 𝛼 = 90° – 60° = 30° So, (d) is the correct answer
CBSE Class 10 Sample Paper for 2020 Boards - Maths Standard
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CBSE Class 10 Sample Paper for 2020 Boards - Maths Standard
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