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can we say that tan pi/8=sinpi/8//cospi/8

can we say that tan pi/8=sinpi/8//cospi/8

Grade:10

3 Answers

Kaustubh Nayyar
27 Points
10 years ago
yes , why not
why do you think that it may not be so??
ash jai
13 Points
10 years ago
how can we furthur solve using this method and find the value ?actually my teacher in scool told that this is wrong when i wrote it in exam?
Kaustubh Nayyar
27 Points
10 years ago
tan pi/2 = (tan pi/4 + tan pi/4)/ (1 – tan                     pi/4.tan pi/4)
this is considered as not defined
also sin pi/2 / cos pi/2 is considered not defined 
any trignometric ratio with denomitor zero is considered as not defined rest we can apply anywhere (in your case too)

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