Listen NCERT Audio Books to boost your productivity and retention power by 2X.
Evaluate each of the following:
cot(–θ) is –cot(θ)
∴ The equation given above becomes cot–1(–cot)
Let cot–1() = y
⇒ cot y =
The range of principal value of cot–1is (0, π)
∴ The value of cot–1(cot) is .