Related InterviewSolutions

• Consider the circle `x^2 + y^2 = 9` and the parabola `y^2 = 8x`. They intersect at P and Q in first and 4th quadrant,respectively. Tangents to the circle at P and Q intersect the x-axis at R and tangents at the parabola at P and Q intersect the x-axis at S.A. 4B. 3C. `8/3`D. 2
• In triangle `A B C ,a : b : c=4:5: 6.`The ratio of the radius of the circumcircle to that of the incircleis____.
• In `Delta ABC`, which one is true among the following ?A. `(b+c)"cos"(A)/(2)=sin((B+C)/(2))`B. `(b+c)"cos"((B+C)/(2))=alpha"sin"(A)/(2)`C. `(b-c)"cos"((B-C)/(2))=alpha"cos"((A)/(2))`D. `(b-c)"cos"(A)/(2)=sin((B-C)/(2))`
• If the angle `A ,Ba n dC`of a triangle are in an arithmetic propression and if `a , ba n dc`denote the lengths of the sides opposite to `A ,Ba n dC`respectively, then the value of the expression `a/csin2C+c/asin2A`is`1/2`(b) `(sqrt(3))/2`(c) `1`(d) `sqrt(3)`A. `(1)/(2)`B. `(sqrt(3))/(2)`C. 1D. `sqrt(3)`