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Distance =180m, time =18sec Speed =180/18=10m/sec 10×18/5 km/h =36km/h
Length of each side of a rhombus is 13 cm and one of the diagonal is 24 cm. What is the area (in cm2) of the rhombus?
If (a + b + c) = 9, find (a – 4)3 + (b – 2)3 + ( c – 3)3 – 3(a – 4 ) (b – 2 ) (c &n...
if a2 + b2 + c2 = 2(3a -5b -6c)-70 , then a-b-c = ?
Find the value of 3/4 cot² 30° + cos² 30°-3cosec²60° + tan² 60°.
If x + y + z = 4, xyz = 6 & x2 + y2 + z2 = 8 then find the value of x3 + y3 + z3.
3x +3y =10 and 3x+y =5 then find the value of 3x-y +3y-x.
