Solve: Sin2x + Sin2x?

Question

Please show your work

Answer 1

Sin2x+Sin2x =2Sin2x.

Answer 2

at first countless the poeple are incorrect in answeting this question. you're able to initiate by way of adjusting sin2x in terms of x basically (not 2x) hence sin2x = 2sinx*cosx somes in accessible. we've cosx = 2sinx*cosx --- yet YOU CANT DIVIDE the two factors by way of COSX (what if cosx = 0) so carry each thing over to the single area cosx - 2sinx*cosx = 0 cosx*(a million - 2sinx) = 0 cosx = 0 ------ a million-2sinx = 0 now resolve those 2 equatinos for the asnwer, even nonetheless there is not any given selection for x, and because cos and sin are infinite applications (bypass on constantly) there is not any a million answer so which you utilize the final formulation yet pondering the questino would not ask for the final recommendations this won't be the case and actually basically a poorly worded question. so fixing for 0<= x <= 360 cosx = 0 x = ninety, 270 tiers a million-2sinx = 0 2sinx = a million sinx = a million/2 x = 30 and a hundred and fifty tiers. giving very final recommendations as x = 30, ninety, a hundred and fifty and 270 tiers.

Answer 3

To be able to "solve" that it has to be equal to something, which I think you forgot to write down. Anyway, one of the trig identities is sin2x= 2sinxcosx, so that might help.

Answer 4

Solve it in terms of what?

Since these are two of the same thing, we can make 2 of them.

2sin(2x)

Do you want it expressed in singular sines and cosines? Then the answer is, by the double angle identity,

2(2sin(x)cos(x)) = 4sin(x)cos(x)

Answer 5

u mean 2sin2x=0
sin2x=0
x=n(pie)/2 n is set of whole numbers

Answer 6

=2sin2x

Answer 7

2Sin2x