Trigonometric Ratios (sin, cos, tan, cot, sec and cosec)

These six trigonometric ratios form the base of trigonometry. So, learn them carefully. Lets suppose we have triangle ABC right angled at B. We have angle and in .

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by Jashan

Trigonometric Ratios (sin, cos, tan, cot, sec and cosec)

These six trigonometric ratios form the base of trigonometry. So, learn them carefully. Lets suppose we have triangle ABC right angled at B. We have angle and in .

by Jashan

In one of the post we learnt values of sin, cos, tan, cot, cosec and sec for 0, 30, 45, 60 and 90 degrees. You can review the post hereĀ http://mathinstructor.net/2012/08/values-of-trigonometric-ratios-for-0-30-45-60-and-90-degrees/

by Jashan

"Pythagoras Theorem" How to find third side of right angled triangle when two other sides are given?

Pythagoras theorem states that "In a right angled triangles" square of hypotenuse is equal to sum of squares of other two sides.

by Jashan

Everybody in school learns multiplication table of 9. Have you ever noticed something strange about multiplication table of 9? If not then please have a look again.