Find all solutions of the equation in the interval [0, 2pi). - 4 sinx= -cos²x+1
Write your answer in radians in terms of pi.
If there is more than one solution, separate them with commas.

x = 0 , π

Step-by-step explanation:

Here , we can get two more equations to find x.

1)

2)

over interval [0 , 2π).

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

i think it might be a but you might want a second opinion