Use OF interval and illustration || Sin ...

Use OF interval and illustration || Sin & Cos 18 degree , Sin & Cos 36 degree || Trigonometry identities with 3 angles and their derivation || Important Points

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18 degree/ 36 degree and Continued proportion OF Sine and Cosine series||Conditional Identity

What is the value of sin 18^@ cos 36^@ ?

In a triangle ABC,3sin A+4cos B=6 and 4sin B+3cos A=1 hold.Then the angle C equals (measured in degree)

cos18 ^ (@) - sin18 ^ (@) =

3A angles ( Sin 3A , Cos 3A , tan 3A & proOF) || Important results || Examples

Graph OF sin inverse (sin x) Cos inverse ( cos x), tan inverse (tan x) etc. & Illustration on them

Suppose ABC is a triangle with 3 acute angles A,B and C. The point whose coordinates are (cos B-sin A,sin B-cos A) can be in the -

find the value of sin18^(0) and cos36^(@)