SOLUTION: 1) Find all t in the interval [0, 2π] satisfying 2(sin t)2 − 3 sin t + 1 = 0 t= 2) Find all t in the interval [0, 2π] satisfying (cos t)2 − 8 cos t + 7

Question 769960: 1) Find all t in the interval [0, 2π] satisfying 2(sin t)2 − 3 sin t + 1 = 0
t=
2) Find all t in the interval [0, 2π] satisfying (cos t)2 − 8 cos t + 7 = 0.
t =
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
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Quadratic equation in sin(t).

AMP Parsing Error of [sin(t)={3+-sqrt(1))/4]: Invalid expression '{3+PLUS_MINNUS-sqrt(1))/4': syntax error at /home/ichudov/project_locations/algebra.com/templates/Algebra/Expression.pm line 203. .

or

or or
Through referring to the unit-circle.
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SOLUTION: 1) Find all t in the interval [0, 2&#960;] satisfying 2(sin t)2 &#8722; 3 sin t + 1 = 0 t= 2) Find all t in the interval [0, 2&#960;] satisfying (cos t)2 &#8722; 8 cos t + 7

SOLUTION: 1) Find all t in the interval [0, 2π] satisfying 2(sin t)2 − 3 sin t + 1 = 0 t= 2) Find all t in the interval [0, 2π] satisfying (cos t)2 − 8 cos t + 7