# Math

## Pythagoras

Right Angle Triangle This is a special type of triangle. It plays an important role in mathematics. As we know that there is a huge role of the right-angle triangle in Pythagoras. A right-angle triangle has an angle of 90̊ and the sum of two other angles is also equal to 90̊. And the explanation …

✪ Quadratic Function :        f(x) = ax2 + bx + c  or y =  ax2 + bx + c  Graphical view of quadratic equation : y = ax2 + bx + c = 0 , ( a ≠ 0 )  y= a[(x + b/2a)2 — D/4a2 ] ( y + D/4a ) = a(x + b/2a)2  . . .(1) let y …

## function & identities

Lesson-Map Angle & it’s Measurement Pythagoras Theorem

## Sequence – Series

Lesson-Map Sequence & Series Arithmetic Progression Geometric Progression Harmonic Progression Arithmetic Mean Geometric Mean

## Trigonometric ratio

TRIGONOMETRY Trigonometry  is  the  branch of  mathematics. As we know that now days it  is going to become important part of mathematics .Basically the meaning of  trigonometry is ‘Measurement of triangles’.   In Short ,we can say that Trigonometry  ANGLE : It is formed by two lines & these line meets at common point. MEASUREMENT OF …

## condition for common roots

Condition for common roots : Let two quadratic equation:   ax2 + bx + c = 0 & a’x2 + b’x + c’ = 0 (where  a.a’ ≠ 0  & ab’- a’b ≠ 0) Let us assume a is  a common root , then                 ax2 + bx + c = 0 & a’x2 + b’x + c’ = 0 Put  x = a , then          …