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If 5Cos(theeta)– 7Sin(theeta) = 7, then 7Cosec(theeta)+ 5Sino(theeta)=​

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If 5Cos(theeta)– 7Sin(theeta) = 7, then 7Cosec(theeta)+ 5Sino(theeta)=​

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Isabelle


7. In a city, 30% are females, 40% are males and remaining are children. What per cent
are children?​

A red light flashes 5 times per minute whereas, the blue light flashes 6 times in 2 minutes at regular intervals. If both lights s

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