( 1 - \operatorname sin 45 %2B \operatorname sin 30 ) ( 1 %2B – InterviewSolution

1.	( 1 - \operatorname sin 45 %2B \operatorname sin 30 ) ( 1 %2B \operatorname cos 45 %2B \operatorname cos 60 ) = 7 / 4
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