tan pi = 0
sin^2 x = 1/4
sin x = +/- 1/2
x = 30, 150 , 210, 330
Which of the following is a solution for the equation 1/485tan^2x = 0?
a) pi
b) pi/2
c) 485pi
d) no solution
Which of the following is NOT a solution to the equation 4sin^2x = 1 for 0≤x≤2pi?
a) 30 degrees
b) 210 degrees
c) 150 degrees
d) 120 degrees?
1 answer