If in ΔABC, DE ||BC, AB = 7.5cm, BD = 6cm and DE = 2cm, then the length of BC in cm is
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If 9x2 + 16y2 = 60 and 3x + 4y = 6, then the value of xy is
If x = √2+1, then the value of x4-1/x4
A can do a work in 12 days while B can do it in 15 days. They undertake to complete it together for Rs. 450. what will be the share of A in this amount of money ?
If x = a cosθ+ b sinθ and y = b cosθ- a sinθ, then x2 + y2 is equal to
An angle in a semicircle is
A chord of length 16 cm is drawn in a circle of radius 10 cm. The distance of the chord from the centre of the circle is
K Srikanth has won Arjuna Award for which sport in India?
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