If x + y = 13 and x2 + y2 = 89, then find xy is
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Simplify 576b3x2a4z3/36a3b2z
If cosA/(1 - sinA) = x, then the value of x is
If √(1 - cos2A) = x, then the value of x is
Reflection of the point (3,-6) in the y-axis is
Mandeep works 3 times as fast as Sampat. If Sampat can complete a job alone in 60 days, then in how many days can they together finish the job?
The third proportional of two numbers 4 and 20 is
In a class of 50 students there are 27 girls. The average weight of these girls is 45 kg and average weight of the full class is 49.6 kgs. What is the average weight of the boys of the class?
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