In a right angled triangle ΔDEF, if the length of the hypotenuse EF is 12 cm, then the length of the median DX is
In a triangle ABC, ∠A = 70°, ∠B = 80° and D is the incentre of ΔABC. ∠ACB = 2x° and ∠BDC = y°. The values of x and y, respectively are
ABCD is a cyclic quadrilateral of which AB is the diameter. Diagonals AC and BD intersect at E. If ∠DBC = 35°, Then ∠AED measures
If x, y, z are the three factors of a3 -7a - 6, then value of x+y+z will be Options:
If ax+by = 1 and bx + ay = 2ab/a2+b2 then (x2+y2)(a2+b2) is equal to
If a + 1/b = b+1/c = c+1/a (where a≠b≠c),then abc is equal to