1+cosx (2sinx-cosx)=sin^2x
1+cosx (2sinx-cosx)=sin^2x
keerthi priya , 11 Years ago
Grade 11
Trigonometry> 1+cosx (2sinx-cosx)=sin^2x...
2 Answers
Abhi99
what is rhs..? if it is (sinx)^2 then ans is x=n(pi)/2 ; n is an integer.
& if on rhs it is sin(2x) then ans is x=n(pi) ;n is an integer.
Approved Last Activity: 11 Years ago
Jitender Singh
1 + cosx(2sinx β cosx) = sin2x
1 + 2sinx.cosx β cos2x = sin2x
1 + 2sinx.cosx = sin2x + cos2x
1 + 2sinx.cosx = 1
sin2x = 0
2x = n(pi)
x = n(pi) / 2
Approved Last Activity: 11 Years ago
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