Question

त्रिकोणमितीय सर्वसमिका :- Sin²A + Cos²A=______​

Answer 1

Sin²A + Cos²A= 1

Step-by-step explanation:

sin2 θ = 1 − cos2 θ

Similarly Sin2A= 1-Cos2A

Taking cos2 A on the left hand side, we get

Sin²A + Cos²A=1

Trigonometric identities are various equations that are true for right angled triangles.

sin2 θ = 1 − cos2 θ

cos2 θ = 1 − sin2 θ

tan2 θ + 1 = sec2 θ

tan2 θ = sec2 θ − 1

cot2 θ + 1 = csc2 θ

cot2 θ = csc2 θ − 1

Learn More:

What is a triangle and types of triangle

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