We can use identities to help us solve trigonometric equations.Using a Double-Angle Formula we see that the equation sin(x) sin(2x) = 0 is equivalent to the equation. Factoring we see that solving this equation is equivalent to solving the twobasic equations sin(x) = 0 and

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Asked Nov 21, 2019
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We can use identities to help us solve trigonometric equations.
Using a Double-Angle Formula we see that the equation sin(x) sin(2x) = 0 is equivalent to the equation
. Factoring we see that solving this equation is equivalent to solving the two
basic equations sin(x) = 0 and
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We can use identities to help us solve trigonometric equations. Using a Double-Angle Formula we see that the equation sin(x) sin(2x) = 0 is equivalent to the equation . Factoring we see that solving this equation is equivalent to solving the two basic equations sin(x) = 0 and

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Expert Answer

Step 1

The given trigonometric equation is,

sinx+sin 2x0
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sinx+sin 2x0

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Step 2

The equivalent form of the...

sin xsin 2x 0
sin x+2 sin xcos.x = 0
(Double-angle formula)
sin x(1+2cosx)=0
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sin xsin 2x 0 sin x+2 sin xcos.x = 0 (Double-angle formula) sin x(1+2cosx)=0

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