# Try again...TRIGONOMETRIC IDENTITIES AND EQUATIONSMaxDouble-angle identities: Problem type 1EspanTry AgainYour answer is incorrectsin 2x: Your answer is incorrect.tan 2x: Your answer is incorrect.3and x terminates in quadrant III13Find sin 2x, cos 2x, and tan2x if cosx=12sin 2x=13?X5cos2x1312tan 2x5

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See attached help_outlineImage TranscriptioncloseTry again... TRIGONOMETRIC IDENTITIES AND EQUATIONS Max Double-angle identities: Problem type 1 Espan Try Again Your answer is incorrect sin 2x: Your answer is incorrect. tan 2x: Your answer is incorrect. 3 and x terminates in quadrant III 13 Find sin 2x, cos 2x, and tan2x if cosx= 12 sin 2x = 13 ? X 5 cos2x 13 12 tan 2x 5 fullscreen
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Step 1

Calculate the value for sinx and tanx where Cosx=adjacent/hypotenuse.

Step 2

Apply the formula for sin(2x) and substitute the value of sin(x) and cos(x).

Step 3

Apply the formula for cos(2x) and substitut... help_outlineImage Transcriptionclosecos (2x) 1-2 sin2(x) 2 =1-2 v13 4 =1-2 13 8 =1- 13 13 fullscreen

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### Trigonometric Ratios 