Sin75°-sin15°/cos75°+cos15°
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Answer:
Step-by-step explanation:
Sin 75 - Sin15/cos75+cos15
Sin75-Sin 15/Sin (90-75)+cos 15
Sin75-sin 15/sin 15+cos15
Sin75-I+cos15
sin75-1=Cos75+ cos 15
cos(75+15)
cos 90=O (cos90=0)
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