What are the 11 trigonometric identities?
Similarly, when we can learn here the trigonometric identities for supplementary angles..
sin (180°- θ) = sinθ.
cos (180°- θ) = -cos θ.
cosec (180°- θ) = cosec θ.
sec (180°- θ)= -sec θ.
tan (180°- θ) = -tan θ.
cot (180°- θ) = -cot θ.
What are the trigonometric identities Class 10?
In class 10th, there are basically three trigonometric identities, which we learn in the trigonometry chapter..
Cos2 θ + Sin2 θ = 1..
1 + Tan2 θ = Sec2 θ.
1 + Cot2 θ = Cosec2 θ.