What is the value of tan(-135) and also cot(-135)..?Solve by writing the steps.
Vinod , 6 Years ago
Grade 11
Trigonometry> What is the value of tan(-135) and also c...
3 Answers
Saurabh Koranglekar
Last Activity: 6 Years ago
Arun
Last Activity: 6 Years ago
Dear Vinod
tan (-135) = – tan 135 = – tan (90+ 45) = cot 45 = 1
similarily
cot (- 135) = – cot 135 = – cot (90+ 45) = tan 45 = 1
Sripad Sambrani
Last Activity: 5 Years ago
Tan(-135) = tan(180-135)= tan(45)=1; since tan is periodic by 180
Cot(-135)=1/tan(-135)=1/1=1
Trust this helps.
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