If tan π/3c + cosec π/6c = x, then x is
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If x – y – √18 = –1 and x + y – 3√2 = 1, then what is the value of 12xy(x2 – y2)?
A 150 m long train, travelling at 54 km/h, crosses a platform in 42 seconds. What is the length of the platform?
Three solid spheres have their radii r1, r2 and r3. The spheres are melted to form a solid sphere of bigger radius. Then the radius of the new sphere is
PQRS is a square whose side is 16 cm. What is the value of the side (in cm) of the largest regular octagon that can be cut from the given square?
If tan4θ + tan2θ = 1 then the value of cos4θ + cos2θ is
The first and last terms of an arithmetic progression are 25 and 52. What is the sum of the series if it has 12 terms?
Find the odd words/letters/number from the given alternatives.
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