If √(1 + cot2A)/cotA = x, then the value of x is
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The value of 16 - [5 - 2{14 of 2 - (8 ÷ 4 x 2 - 1 + 3}] is
If x - y = -9 and xy = -20, then find x2 + y2 ?
If a - b = -7 and a2+ b2= 85, then find ab.
The perimeter and the length of one of the diagonals of a rhombus is 34 cm and 8 cm respectively. Find the length of its other diagonal (in cm).
The mean deviation of the data 3, 10, 10, 4, 7, 10, 5 is :
A boy running at 10/9 th of his actual speed covers 39 km in 2 hours 20 minutes and 24 seconds. Find the actual speed of the boy (approx.)
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