Hello, I need help on my Mathematics 30-1 Quiz 7.1 (Pre/calculus) Questions #11-#13 and Numerical response #4

Mathematics 30-1 Quiz 7.1 - TS 10. Which of the following statements is incorrect? A. cols 2 B. sec ( 2 ) = 2 C. csc ( III ) = 2 (47 ) = 13 D. tan Hint: Refer to the relationships between the primary and reciprocal trigonometric ratios. Numerical Response 3. Kisangani, Congo, and Sorong, Indonesia are separated by the Indian Ocean; both lie on the equator. The angle between the two cities, determined by bisecting a globe, is approximately 106 . Find the shortest arc length from Kisangani to Sorong if the circumference of the earth at the equator is approximately 24 895 mi. Round to the nearest mile. C : 24895 mi TI Kisangani 106 Sorong Hint: Convert to radians. Use circumference to find radius