June 2017

Six Trigonometric Ratios (sin, cos, tan, cot, sec and cosec)
June 15, 2017  Author: 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 .
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How to find values of sin 15, sin 75, cos 15, cos 75, tan 15, tan 75, cot 15, cot 75, sec 15, sec 75, cosec 15 and cosec 75 degrees?
June 14, 2017  Author: 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 here http://mathinstructor.net/2012/08/valuesoftrigonometricratiosfor0304560and90degrees/
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"Pythagoras Theorem" How to find third side of right angled triangle when two other sides are given?
June 10, 2017  Author: 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.
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