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Please help me, I am so confused. Thanks​
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Please help me, I am so confused. Thanks​

Please help me, I am so confused. Thanks​-example-1
User Schustischuster
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1 Answer

9 votes

Answer:

c. 80

Explanation:

cos x = sin(x-70)

cos x = cos [90-(x-70)]

cos x = cos (90-x +70)

cos x = cos 160 -x

x= 160-x

2x = 160

x =80

User Qwwqwwq
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