Choose the odd word/letters/number/number pair from the given alternatives.
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Δ ABC is right angled at B. If m∠A = 60°, then what is the value of 2 Sec C x 1/2 Sin A?
If cosθ = x2-y2x2+y2, then the value of cotθ is
Find equation of the perpendicular bisector of segment joining the points (2,6) and (4,0)?
If XY = a+23 and YX = 13, then find the value of X2 + Y2X2 - Y2.
A man, rowing a boat, covers a distance of 16 km in two hours downstream. He covers half the distance in same amount of time when rowing upstream. Calculate the speed of the stream.
If the length of one side and the diagonal of a rectangle are 10 cm and 26 cm respectively, then find its perimeter (in cm).