Mathematics, 15.02.2022 06:10 cece4874

Select the correct answer Lucy started the proof of the law of cosines using triangle WXY as shown
w
w
Z
Given XZIWY AWXZ and AYXZ are right triangles
Step 1: Cos(W) = W2; ycos(W) = w z
Step 2: sin(W) = XE; XZsin(W)=y
Step 3: ZY = =-ycos(W)
step 4: W2 = (x-ycos(W))2 + x 22
Which step contains the first error in calculation?

Answers: 3

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Select the correct answer Lucy started the proof of the law of cosines using triangle WXY as shown...