Trigonometric functions ; How to memorize 24 equations of trigonometric functions easily

 How to memorize 24 equations of trigonometric functions easily

1. Sin² + Cos² = 1
2. Sec² - Tan² = 1
3. Cosec² - Cot² = 1

In teenon formula ko ek sath yad rakhen. Inmein ek Kiran yah raha hai ki in sabhi ke bad mein 1 hai. Jinhe ham bahut aasani se yad sakte hain.

1. Sin²A = 1- Cos²A
2. Cos²A = 1- Sin²A 

Yah donon farmula Sin² + Cos² = 1 farmula se aaye Hain.

1. Sec²A = 1+ Tan²A
2. Tan²A = Sec²A -1

Yah donon formule Sec² - Tan² = 1 ke dwara aaye Hain.

1. Cosec²A = 1+ Cot²A
2. Cot²A = Cosec²A - 1

Yah to formulae Cosec² - Cot² = 1 ke dwara aaye Hain. Informal tatha ine se upar ke form mein koi yad rakhna lagbhag Sam hai.

1. Sin(A+B) = SinA.CosB + CosA.SinB
2. Sin(A-B)  = SinA.CosB - CosA.SinB
3. Cos(A+B) = CosA.CosB - SinA.SinB
4. Cos(A-B) = CosA.CosB + SinA.SinB

In charo formula Ko yad karna bahut aasan hai Jaise  Sin wale formula me + wale mein + hai tatha - wale mein - jab ki Cos wale mein yah ulta hota hai + wale mein - tatha - wale mein + hota hai.

1. Sin2A = 2SinA.CosA
2. Cos2A = Cos²A + Sin²A

Yah donon formulae kram se Sin(A+A) tatha Cos(A+A) se Bane Hain.

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1. Cos2A = 2Cos²A - 1
2. Cos2A = 1+2Sin²A

Yah donon formule Cos2A ke mukhya formulae se band hue hain

1. Sin A= लम्ब/कर्ण |         Sin A= 1/Cosec A
2. Cos A=आधार/कर्ण |       Cos A= 1/Sec A 
3. Tan A= लम्ब/आधार |      Tan A= 1/Cot A
4. Cot A= आधार/लम्ब |      Cot A=1/Tan A
5. Sec A= कर्ण/आधार |      Sec A= 1/Cos A
6. Cosec A= कर्ण/लम्ब |      Cosec A= 1/Sin A
7. Tan A= Sin A/Cos A
8. Cot A=Cos A/Sin A

Yeah formula trikonamiti ki prarambhik formulae Hain jin per sari technometry tiki Hui hai.