Question

√(1+sin2x)=√(sin²x+cos²x+2sinx.cosx)
How this is possible ??

Answer 1

Answer:

I don't know but

Step-by-step explanation:

but I am try this question because is interesting

Answer 2

Step-by-step explanation:

√1+sin2x= √(cosx+sinx)^2=sinx+cosx

√sin^2 x+cos^2 x+2sinxcosx

=√1+sin2x

=sinx+cosx (proved)