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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
9 years ago
yes , why not
why do you think that it may not be so??
ash jai
13 Points
9 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
9 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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