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How would you use a double angle identity to find tan(2x) given cosx=-5/13 and sinx < 0?

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  • How would you use a double angle identity to find tan(2x) given cosx=-5/13 and sinx < 0?


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... function of a double angle. Ex.2 Given #sin(x)=3/5#, find ... you use the double-angle identities to find ... you find the value of #tan 20 ...
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Positive: 48 %
Sine or Cosine of a Double Angle. With equation 48, you can find sin ... Tangent of a Half Angle. You can find tan ... For all of them, tan(B/2) = 0, as ...
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Positive: 45 %

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Ch. 7 Final Review Multiple Choice ... Given sinθ= 6 11 and secθ< 0, find cosθ and tanθ. ... What basic trigonometric identity would you use to verify ...
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Positive: 48 %
Use identities(double-angle) to find the values of the sine and cosine ... 2Ɵ given that cos x = -5/13 and sin Ɵ > 0 *** ... cosx=-5/13 sinx=12/13 sin(2x
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Positive: 43 %
right triangle trig, pythagorean theorem, double angle identities.
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Positive: 29 %
... Double Angle Formulas (Sum Identities) ... Use double angle and sum formulii to each rewrite each of the ... sin 2x b) 2 sinx c) 2 sin x cos ...
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Positive: 6 %

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