Question 250686
could you PLEASE help me solve this trig identity.
(6sinx)-(5cosx)-(2)=0
That's not an identity, it's an equation in x.
6sin - 5*sqrt(1-sin^2) - 2 = 0
6sin -2 = 5sqrt(1-sin^2)
36sin^2 - 24sin + 4 = 25 - 25sin^2
61sin^2 - 24sin - 21 = 0
*[invoke solve_quadratic_equation 61,-24,-21]
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The solver uses x, it's actually sin(x)
sin(x) = 0.8155602
sin(x) = -0.4221176
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Use a calculator to find x
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