Prove geometrical in that cos a + b is equal to Cos A into cos B minus sin a into Sin B sin find
cos 75 degree
Question
How do we understand whether we must the ratios or identity while solving trigonometry?
Teachoo I'm not able to understand sums of derivatives by 1st principle in limits and derivatives lesson of class 11. Can u plz upload video lecture of any 1 sum of that concept.
write the equivalence relation on {1,2,3,4,5} that is induced by the partition with {1,5} ,{2,4} ,{3} as its partitioning subsets
find the coordinates of the focus and the vertices of the equation of directrix and axis and length of the latest rectum of parabola where the equation 3 y square equal to 8 x
Maths
Jan. 19, 2019, 9:11 p.m.
Answer
Prove that if a quadilateral's diagonals divides it into two congruent triangles then it is a parallelogram.