Related InterviewSolutions

• a) Srinu said “Angle of elevation is equal to the angle of depression.”b) Srikanth said “Angle of depression is equal to the angle of elevation.”A) Only A is True B) Only B is True C) Both A and B are True D) Both A and B are False
• Verify:2 sin 45° cos 45° = sin 90°
• Verify that the equation ‘sin2 θ + cos2 θ = 1’ is true when θ = 0° or θ = 90°.
• Verify:2 sin 30° cos 30° = sin 60°
• Verify:cos 60° cos 30° + sin 60° sin 30° = cos 30°
• Evaluate:sin 60° cos 30° + cos 60° sin 30°
• Verify:sin 60° cos 30° − cos 60° sin 30° = sin 30°
• Evaluate:cos 60° cos 30° − sin 60° sin 30°
• Prove that cos 54° cos 36° − sin 54° sin 36° = 0.
• If A = 60° and B = 30°, verify that cos (A + B) = cos A cos B − sin A sin B.