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While measuring the distance between two points along upgrade with the help of a 20 m chain, the forward end of the chain is shifted forward through a distance. | |
A. | 20 (sin θ - 1) [Wrong Answer] |
B. | 20 (cos θ - 1) [Wrong Answer] |
C. | 20 (sec θ - 1) [Correct Answer] |
D. | 20 (cosec θ - 1). [Wrong Answer] |