If θ is positive acute angle and 7cos2Ɵ + 3sin2Ɵ = 4, then the value of θ is
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If a1-2a+b1-2b+c1-2c = 12, then 11-2a+11-2b+11-2c value is
If x = 999, y = 1000, z = 1001, then the value of x3+y3+z3-3xyzx-y+z is
Two numbers are in the ratio 3:5. If 6 is added to both of them, the ratio becomes 2:3. The numbers are
If α + β = 90° and α:β = 2:1, then the ratio of cosα to cosβ 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
If a sum of money doubles itself in 8 yrs, then the interest rate in percentage is ?
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