Question
The side of an equilateral triangle is 15 cm long. What
is the radius of the circle circumscribing this equilateral triangle?Solution
Radius of the circle circumscribing the equilateral triangle = (side/√3) = (15/√3) =15/√3 x (√3/√3) = 15√3/3 = 5√3 cm
If x2 – 10x + 20 = 0, then find the value of (x – 3)2 + 1/(x – 3)2
((99.9 - 20.9)² + (99.9 + 20.9)² )/(99.9 x 99.9 + 20.9 x 20.9) = ?
...If (5x + 2)3 + (x – 1)3 + 8(3x – 7)3 = 6(5x + 2) × (x – 1) × (3x – 7), then the value of (5x + 3) is
...Find the value of ‘x’ in the given expression:
(49/16)x × (64/343)x-1 = 4/7
If x2 = 15x + 1, then find the value of {x3 - (1/x3) }.
-Constable/1722079503-26.JPG)
A dishonest dealer claims to sell goods at cost price but uses a false weight of 900g instead of 1kg. What is his profit percentage?
Present age of Vikrant is 20% less than the present age of Priya. Age of Vikrant 5 years ago was 50% the present age of Priya. Find the present average ...
If (x – 3) is a factor of (x2 + 4qx – 2q), then the value of q is:
{(21/20) + (20/21)}2 - {(21/20) - (20/21)}2 = ?
Relevant for Exams:
