For the following questions answer them individually
If PA and PB tangents to a circle with center such that $$\angle APB$$=80° then $$\angle AOP$$ =
Which one of the following is the minimum value of the sum of two integers whose product is 24?
The average marks obtained by a class of 60 students is 65. The average marks of half of the students is found to be 85. The average marks of the remaining students is
If $$x=\sqrt{a}+\frac{1}{\sqrt{a}},y=\sqrt{a}-\frac{1}{\sqrt{a}}, (a>o)$$ the the value of $$x^{4}+y^4-2x^2y^2$$ isÂ
AB is the diameter of a circle with center O and P be a point on its circumference if $$\angle POA$$ = 120° then the value of $$\angle PBO$$ isÂ
A pilot in an aeroplane at an altitude of 200 m observes two points lying on either side of a river. If the angles of depression of the two points be 45° and 60°, then the width of the river is
A solid sphere of radius 9 cm is melted to form a sphere of radius 6 cm and a right circular cylinder of same radius. The height of the cylinder so formed is ?
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