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If 2x+1, x+2, 2 and 5 are in proportion, then what is the mean proportional between 3.5(1-x) and 8(1+x)?
If x2 – 10x + 20 = 0, then find the value of (x – 3)2 + 1/(x – 3)2
If x + 1/x = 5 then find out the value of x⁵ + 1/(x⁵)?
If 112 ÷28 x 22 –12 x 6 ÷ 3 +12 = z, then find the value of z.
If x = 6 + 2√5, then the value of √x - (1/√x)?
The certain sum amounts to Rs11313.5 in 2(1/2) years at 12% p.a., interest compounded 10 months. The sum (in Rs) is:
If (4x + 3y): (28x - y) = 1: 5, then what is the value of (3x 2 + 4y 2 ): (7x 2 + 2y 2 )?
If x = 107, then find the value of x(x2 - 12x + 48) ?