Related InterviewSolutions

• Write the range of one branch of \(sin^{–1} x\), other than the principal branch.
• Find the principal value of \(cos^{-1} [cos (– 680°)]\).
• Evaluate: \(tan (tan^{–1} (–4))\).
•  Find the value of \(tan^{-1}(\frac xy)-tan^{-1}(\frac{x-y}{x+y})\).
• Prove that cos^-1 X = 2sin^-1 √1-x/2 = 2cos^-1 √1+X/2