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Question 13 - CBSE Class 10 Sample Paper for 2021 Boards - Maths Standard - Solutions of Sample Papers for Class 10 Boards

Last updated at Oct. 23, 2020 by

If x = 2 sin 2 πœƒΒ  and y = 2cos 2 πœƒ + 1, then find x + y

If x = 2 sin^2 ΞΈ and y = 2 cos^2 ΞΈ + 1, then find x + y - Teachoo

  1. Class 10
  2. Solutions of Sample Papers for Class 10 Boards

    3. CBSE Class 10 Sample Paper for 2021 Boards - Maths Standard

    CBSE Class 10 Sample Paper for 2021 Boards - Maths BasicΒ β†’

Transcript

Question 13 If x = 2 sin2πœƒ and y = 2cos2πœƒ + 1, then find x + yNow, x + y = 2 sin2πœƒ + 2 cos2πœƒ + 1 = 2 (sin2πœƒ + cos2πœƒ) + 1 Putting sin2πœƒ + cos2πœƒ = 1 = 2 Γ— 1 + 1 = 2 + 1 = 3

Class 10
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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.