railway RRB Technician Grade 3 Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

What is the value of the following expression:

(Cot1º Cot2º Cot3º Cot4º Cot5º . . . . Cot90º)

A. 0

B. 1

C. 2

D. 1/2

1
B
2
D
3
C
4
A
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