SOLUTION: please help me on this: Solve the following equations for x, if 0 ≤ x ≤ 2pi a) sinx=(-1/2) b)sqrt(2)x= -1 c) 3tan + sqrt(3)= 0 d) 8cos^2= 4 I'd really ap

Algebra ->  Trigonometry-basics -> SOLUTION: please help me on this: Solve the following equations for x, if 0 ≤ x ≤ 2pi a) sinx=(-1/2) b)sqrt(2)x= -1 c) 3tan + sqrt(3)= 0 d) 8cos^2= 4 I'd really ap      Log On


   

Question 749600: please help me on this: Solve the following equations for x, if 0 ≤ x ≤ 2pi
a) sinx=(-1/2)
b)sqrt(2)x= -1
c) 3tan + sqrt(3)= 0
d) 8cos^2= 4
I'd really appreciate it if someone can help me on this, Thank You so much!
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
please help me on this: Solve the following equations for x, if 0 ≤ x ≤ 2pi
a) sinx=(-1/2)
x=7π/6, 11π/6 (Q3 and Q4 where sin<0)
..
b)sqrt(2)x= -1
??
..
c) 3tan + sqrt(3)= 0
tanx=-√3/3
x=5π/6, 11π/6 (Q2 and Q4 where tan<0)
..
d) 8cos^2= 4
cos^2x=4/8=1/2
cosx=1/√2
x=π/4, 7π/4 (Q1 and Q4 where cos>0)