Question
Transcribed Text
For sin 2.c + cos x = 0, use a double-angle or half-angle formula to simplify the equation and then find all solutions of the equation in the interval [0, 2nT).
The answer is x1 =
, x2 =
, x3 =
and x4 =
with
x1 < x2 < x3 < x4.
Find all solutions of the equation 2 cos x - 1 = 0 on 0 x < 2\T
The answers are A and B, where A < B
A =
B =
Solve - -4sin²(x)-3cos(x) - = - 3
The smallest non-negative solution is:
The next smallest non-negative solution is:
Find all solutions of the equation 2 cos 3.c = 1 in the interval (0, TT
The answer is x1 =
, x2 =
and x3 =
with x1 < x2 < x3.
For sin 3.c + sin x = 0, use a sum-to-product formula to simplify the equation and then find all solutions of the equation in the interval .
The answer is x1 =
and x2 =
with x1 < x2.
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