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CBSE Class 10 Answered

If sinø + 2cosø = 1 PROVE THAT : 2sinø - cosø = 2.
Asked by 1875012872798739 | 25 Feb, 2018, 09:37: PM
answered-by-expert Expert Answer
begin mathsize 16px style sinϕ plus 2 cosϕ equals 1......... left parenthesis straight i right parenthesis 2 sinϕ minus cosϕ equals 2......... left parenthesis ii right parenthesis Solving space Simultaneously space we space get sinϕ equals 1 space and space cosϕ equals 0 rightwards double arrow straight ϕ equals degree Hence comma space If space sinϕ plus 2 cosϕ equals 1 space then space 2 sinϕ minus cosϕ equals 2 end style
Answered by Sneha shidid | 26 Feb, 2018, 12:12: PM

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