If a1-2a+b1-2b+c1-2c = 12, then 11-2a+11-2b+11-2c value is
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If x = 999, y = 1000, z = 1001, then the value of x3+y3+z3-3xyzx-y+z is
The average weight of 10 parcels is 1.7 kg. Addition of another new parcel reduces the average weight by 60 gram. What is the weight , in kg, of the new parcel?
If α + β = 90° and α:β = 2:1, then the ratio of cosα to cosβ is
The ratio of angles of a triangle are 1 : 2/3 : 3. Then the smallest angle is
Points P , Q and R are on a circle such that ∠PQR = 40° and ∠QRP = 60° . Then the subtended angle by arc QR at the centre is
If (x + 1/x) = 3, then x8+1x8 is equal to
If ( x - 5)2 + (y - 2)2 + (z - 9)2 = 0 , then value of (x + y - z) is
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