One and one-fourth equals to 5 over 4
5/4 times 3/3 equals to 15/12
subtract 5/12 from 15/12
the answer is 10/12
simplest form is 5/6
hope it helped
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Answer:
Step-by-step explanation:
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Answer:
130 and 95
Step-by-step explanation:
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The double angle formula for the sine is

The right hand side is exactly your expression, where 
So, rewriting the expression from right to left, we have
