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cathoderay
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[SOLVED] trigonometry math 30pure
a student is given the following sinusoidal
2 sin^2 (x)-5sinx=3
1) Determine the solution to the equation , defined on the domain using a graphical approach over the domain 0 [tex]\leq[/tex] x [tex]\leq[/tex] 2 [tex]\pi[/tex]. Give solutions as exact values.
2) Determine the solution to the equation , defined on the domain using a algebraic approach over the domain 0 [tex]\leq[/tex] x [tex]\leq[/tex] 2 [tex]\pi[/tex]. Give solutions as exact values.
1) using my grafic calculator TI-83 plus i find this answers
is it using the equation y= a Sin[b(x-c)]+d??
thanks
Homework Statement
a student is given the following sinusoidal
2 sin^2 (x)-5sinx=3
Homework Equations
1) Determine the solution to the equation , defined on the domain using a graphical approach over the domain 0 [tex]\leq[/tex] x [tex]\leq[/tex] 2 [tex]\pi[/tex]. Give solutions as exact values.
2) Determine the solution to the equation , defined on the domain using a algebraic approach over the domain 0 [tex]\leq[/tex] x [tex]\leq[/tex] 2 [tex]\pi[/tex]. Give solutions as exact values.
The Attempt at a Solution
1) using my grafic calculator TI-83 plus i find this answers
- Equation: Y1= 2 sin^2 (x)-5sinx, Y2= 3
- Window: zoom trig
- I/Z= find intersection points.
- Answer: x= (-5)([tex]\pi[/tex])/6, (-1)([tex]\pi[/tex])/6, (7)([tex]\pi[/tex])/6, (11)([tex]\pi[/tex])/6
is it using the equation y= a Sin[b(x-c)]+d??
thanks