Math, asked by rejmarukejcero, 1 year ago

cos11π/12-cosπ/12/sin5π/12

Answers

Answered by azizalasha

1

Answer:

-2

Step-by-step explanation:

cos11π/12 - cosπ/12/sin5π/12

= cos 165 - cos 15/sin 75

= cos 165 - cos 15/sin 75

= -2cos15/sin 75

= -2cos15/cos15

= -2

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