Julissa wants to find the measure of LA in A ABC.11 = 72 + 9 -2·9.7.cosxStep 1:Step 2:121 = 130 - 126 cos x9.11Step 3:9 = -126 - cos xStep 4:= COS X126C.6.Step 5:She uses the Law of Cosines to work the problem as shown.X = cos= 94°126In which step did Julissa make a mistake?Step 1Step 2CStep 3DStep 4

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Julissa wants to find the measure of ZA in A ABC. Step 1: 11 = 7? + 9 - 2·9.7.co COS X Step 2: 121 = 130 - 126 cos x 9, 11 Step 3: 9 = -126 · cos x Step 4: = COS X 126 Step 5: She uses the Law of Cosines to work the problem as shown. X = cos - 94° 126 In which step did Julissa make a mistake? Step 1 Step 2 C Step 3 Step 4

Julissa wants to find the measure of ZA in A ABC. Step 1: 11 = 7? + 9 - 2·9.7.co COS X Step 2: 121 = 130 - 126 cos x 9, 11 Step 3: 9 = -126 · cos x Step 4: = COS X 126 Step 5: She uses the Law of Cosines to work the problem as shown. X = cos - 94° 126 In which step did Julissa make a mistake? Step 1 Step 2 C Step 3 Step 4

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter6: The Trigonometric Functions

Section6.2: Trigonometric Functions Of Angles

Problem 33E

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