33. The value of tan(-405°) is RRB ...
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33. The value of tan(-405°) is RRB NTPC (Phase 1) 2016 (1) 1 (2) -1 (3) o (4) O

11th - 12th Class
Maths
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89
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33. (2) ( tan left(-405^{circ}right) ) By sign of Trigonometric function [ tan (-theta)=-tan theta=-tan left(405^{circ}right)-tan left(360^{circ}+45^{circ}right) ] By sign of Trigonometric function [ begin{aligned} tan left(360^{circ}+thetaright) &=tan theta &=-tan 45^{circ}=-1 end{aligned} ]
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