In a triangle PQR, ∠PQR = 90 deg, PQ = 10 cm and PR = 26 cm, then what is the value (in cm) of inradius of incircle?
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In the given figure, OX, OY and OZ are perpendicular bisectors of the three sides of the triangle. If QPR = 65 deg and PQR = 60 deg, then what is the value (in deg) of QOR + POR ?
If (x/a) + (y/b) = 3 and (x/b) – (y/a) = 9, then what is the value of x/y?
If x – 4y = 0 and x + 2y = 24, then what is the value of (2x + 3y)/(2x – 3y)?
A = (x8 – 1)/(x4 + 1) and B = (y4 – 1)/(y2 + 1). If x = 2 and y = 9, then what is the value ofA2 + 2AB + AB2?
If x + y = 3, then what is the value of x3 + y3 + 9xy?
If x2 – 4x + 1 = 0, then what is the value of x9 + x7 – 194x5 – 194x3?
If [a + (1/a)]2 – 2[a – (1/a)] = 12, then which of the following is a value of 'a'?
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