X² + (√3+ 1) x + √3 find the zeroes n explain the relationship with cofficients 

X²  + (√3 + 1 ) x + √3

Can you prove that (-) x (-)= + if yes then prove it?

I+j-k; -i-j-2k: -3i+3j. are perpendicular. Show that

show that the line joining (9,3),and (15,-3) cuts off equal intercepts on the axes

In a musical chair game, the person playing the music has been adviced to stop playing the music at any time within 2 minute after she start playing. What is the probability that the music will stop within the first half minute after starting? 

What is polynomial equation

diameter of base of cone is 10.5cm and its slant height is 10 cm find its curved surface area

Class 10      Maths NCERT     ex 10.2

In Q7:- How can you take PQ as a straight line?

If A, B, C are angles of triangle. Prove that tan (A - B)/2 = cot (B + C/2)