find the value of cos^-1(cos(-110))
Answers
Answered by
0
Cos⁻¹ ( Cos (-100°) )
We know that Cos (-θ) = Cos (θ)
so Cos⁻¹ (Cos (100°) ) = 110°
We give the value between 0 and 180 degrees for inverse Cosine. because that is the range in which inverse cos is defined. ....
===========
if it is inverse Sine, then the range /domain for the angle is -Pi/2 to pi/2.
We know that Cos (-θ) = Cos (θ)
so Cos⁻¹ (Cos (100°) ) = 110°
We give the value between 0 and 180 degrees for inverse Cosine. because that is the range in which inverse cos is defined. ....
===========
if it is inverse Sine, then the range /domain for the angle is -Pi/2 to pi/2.
Similar questions