If a=101 then the value of a(a2-3a+3) is
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The value of cos220°+cos270° is
Three consecutive angles of a cycle quadrilateral are in the ratio of 1 : 4 : 5 . The measure of fourth angle is
In the fig. ∆ABC is inscribed in a circle with centre O. If ∠ABC = 30° then ∠ACB is equal to
If (4a-3)2=0, then the value of 64a3+12a+13 is
If 2x-y2+(3y-2z)2=0, then the ratio of x:y:z is
A farmer travelled a distance of 61 km in 9 hours. He travelled partly on foot at a speed of 4 km/hour and partly on bicycle at a speed of 9 km/hour . The distance travelled on foot is
If the ratio of cost price and selling price is 4 : 5 ,then the percentage of profit will be