PAB and PCD are two secants to a circle. If PA = 10 cm, AB = 12 cm and PC = 11 cm, then what is the value (in cm) of PD?
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If sin π/6 + sec π/6 = x, then x is
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Point P is the midpoint of segment AB. Co-ordinates of P are (3 , 1) and B are (5, -4). What are the co-ordinates of point A?
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tanAcosec2A is equal to
Simplify : 132 - 142 + 172 - 250 = ?
List price of TV is Rs. 2300 and discount series found to be 25% and 10%. Then the selling price of TV is